Critical Hang and Memory leak as loading screens commences

[Halvkyrie]

Hi! So this bug/issue is a bit hard to describe, but it's been a reoccurring one, and I will update this post as I acquire more information.
So, to describe the times it happens, and what happens:
As I finish a mission (And trigger extraction, which leads to loading back to the orbiter/drifter camp/relay/dojo), I'll use alt+tab to switch over to an application like Discord. On some occasions as I do this, I'll get a notification from Warframe regarding how it "Failed to allocate memory" (I admittedly forgot to grab the exact text, but I'll add it here once it happens again). Warframe is at this point completely frozen and if it is in focus, I cannot change focus to a different application, so to kill it off, I'll have to change to a different desktop view and then open up task manager to shut the process down. The thing to note here, is that the task manager will at this point show Warframe using nearly all my available ram (About 20GB, in this scenario).
Not long ago I've changed from running the game in Fullscreen instead of Borderless Fullscreen to have better performance and reduced input lag, and to avoid the game running at "full speed" when I need to switch view to my browser, Discord etc. This error has only occurred while I've been running Warframe in Fullscreen.

I run the game on a 3440x1440@100hz display through a thunderbolt 3 dock. Using DX12/New engine, in fullscreen.
System Information:
 

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Via Sysinfo:

OS Name    Microsoft Windows 10 Home
Version    10.0.19044 Build 19044
Other OS Description     Not Available
OS Manufacturer    Microsoft Corporation
System Name    SILVER-SURFER
System Manufacturer    LENOVO
System Model    81UH
System Type    x64-based PC
System SKU    LENOVO_MT_81UH_BU_idea_FM_LEGION Y740-15IRHg
Processor    Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz, 2592 Mhz, 6 Core(s), 12 Logical Processor(s)
BIOS Version/Date    LENOVO BVCN16WW(V1.12), 21/06/2021
SMBIOS Version    3.0
Embedded Controller Version    1.16
BIOS Mode    UEFI
BaseBoard Manufacturer    LENOVO
BaseBoard Product    LNVNB161216
BaseBoard Version    31900002 WIN
Platform Role    Mobile
Secure Boot State    Off
PCR7 Configuration    Elevation Required to View
Windows Directory    C:\Windows
System Directory    C:\Windows\system32
Boot Device    \Device\HarddiskVolume2
Locale    United Kingdom
Hardware Abstraction Layer    Version = "10.0.19041.1566"
Username    SILVER-SURFER\Valkyrie
Time Zone    W. Europe Summer Time
Installed Physical Memory (RAM)    32.0 GB
Total Physical Memory    31.9 GB
Available Physical Memory    23.9 GB
Total Virtual Memory    53.8 GB
Available Virtual Memory    40.2 GB
Page File Space    21.9 GB
Page File    C:\pagefile.sys
Kernel DMA Protection    Off
Virtualisation-based security    Not enabled
Device Encryption Support    Elevation Required to View
Hyper-V - VM Monitor Mode Extensions    Yes
Hyper-V - Second Level Address Translation Extensions    Yes
Hyper-V - Virtualisation Enabled in Firmware    Yes
Hyper-V - Data Execution Protection    Yes

Via DxDiag:

           Card name: NVIDIA GeForce RTX 2080 with Max-Q Design
        Manufacturer: NVIDIA
           Chip type: NVIDIA GeForce RTX 2080 with Max-Q Design
            DAC type: Integrated RAMDAC
         Device Type: Full Device (POST)
          Device Key: Enum\PCI\VEN_10DE&DEV_1ED0&SUBSYS_3FEE17AA&REV_A1
       Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER]
 Device Problem Code: No Problem
 Driver Problem Code: Unknown
      Display Memory: 24353 MB
    Dedicated Memory: 8010 MB
       Shared Memory: 16343 MB
        Current Mode: 3440 x 1440 (32 bit) (100Hz)
         HDR Support: Not Supported
    Display Topology: Extend
 Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
     Color Primaries: Red(0.665039,0.322266), Green(0.296875,0.638672), Blue(0.151367,0.061523), White Point(0.313477,0.329102)
   Display Luminance: Min Luminance = 0.121100, Max Luminance = 315.214996, MaxFullFrameLuminance = 315.214996
        Monitor Name: Generic PnP Monitor
       Monitor Model: BenQ EX3501R
          Monitor Id: BNQ7F5E
         Native Mode: 3440 x 1440(p) (59.973Hz)
         Output Type: Displayport External
Monitor Capabilities: HDR Not Supported (Eotf2084Supported )
Display Pixel Format: DISPLAYCONFIG_PIXELFORMAT_32BPP
      Advanced Color: Not Supported
         Driver Name: C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_ce837e92efe9cbc4\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_ce837e92efe9cbc4\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_ce837e92efe9cbc4\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_ce837e92efe9cbc4\nvldumdx.dll
 Driver File Version: 30.00.0015.1179 (English)
      Driver Version: 30.0.15.1179
         DDI Version: 12
      Feature Levels: 12_1,12_0,11_1,11_0,10_1,10_0,9_3,9_2,9_1
        Driver Model: WDDM 2.7

 

I'm honestly a little unsure how much of the system data is/isn't relevant. If desired I'll gladly post anything else required.

[Halvkyrie]

Ah! It happened again finally!
The error popup box says:
< > is the window title and [ ] is a box

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<Error>
Unable to create  render target, insufficient video memory!
[OK]