I know you can play the game at chrome://dino, but it doesn't evoke the same nostalgic feeling of a 10yr old me turning on aeroplane mode and spamming space bar to try and beat my brother's high score.
Good memories.
I use firefox/librewolf for everything and keep a chromium based browser around for those rare websites that don't work well on Firefox (fuck you google drive, ik you're doing it on purpose).
I don't know about you but whenever I fiddle around about:config in firefox, Google Drive stops working. Maybe make a new profile and don't change much in about:config? This got Google Drive working for me