you can. don't know about chrome, i have Firefox on my phone. just open it, go to twitch, then in Firefox drop down menu click request desktop sight. log in & watch & clam.
Wish I could just login to my account directly, instead of having to make a iOS account. Enabling cross save prevents me trading with any of my friends, unless they enable it also. Most only play on 1 device so don’t have cross save enabled.