In my personal experience chrome rarely gives up ram and will starve programs that need it more. While that works if you’re only running chrome, if you’re using it in the background while doing something else then you can find important programs running out of memory. The result is that you have to close and reopen chrome.
Granted, I haven’t used chrome or a chromium-based browser in a very long time, so chrome might have gotten better at giving up memory when other programs need it. However, if I’m playing a game, doing rendering, working in a game engine, etc, then usually I have a browser open in the background with YouTube or Twitch and/or programming/visual references. I don’t need or want a browser consuming as much memory as it can, just enough for it to play videos, show me reference images or tell me how to program something. It absolutely doesn’t need +8gb of ram to do that (I saw it hit 16gb once, which was when I switched to Firefox; 16gb is ridiculous no matter how many tabs you have open).