Apparently one of the main developers of GrapheneOS is a bit unhinged (see the Louis Rossmann video about that if interested), but he makes quality software so I highly recommend other people use it.
I’m never going to agree with everyone who makes software I use, I only care about the quality of the software. In fact, I very much disagree with the politics espoused by those who make lemmy, yet I’ve contributed code and spend a lot of time here.
Firefox is my main browser, but I use Brave when I need a chromium-based browser. I disagree with the politics of a lot of people at Mozilla, and I disagree with Brendan Eich as well. Both are high quality browsers, so I use them.