Maybe they figure most linux users can tweak the settings, install & configure plugins on whatever browser they're using to harden things up with the hassle overhead they can live with..?

Shoutout for firefox's cross OS, cross device syncing. "I found that and I have that it open in a tab on my desktop" and now it's open on my phone. Send another tab from phone to laptop where it's easier to work on. Really good stuff.