A recent Gerrit post says it's in the works
Most websites (like this one) adjust their formatting automatically to account for screens of different size and density. But sometimes the formatting goes weird, and you just gotta pretend you're on your beige Dell from 2003. According to a recent patch in the Chromium Gerrit, Chrome on Android might be getting an option to toggle the "Request Desktop Site" option on a permanent basis.
The change was spotted by Chrome subreddit user Leopeva64-2.
Chrome for Android may gain a permanent Desktop View switch was written by the awesome team at Android Police.