@thatbrickster @mametsuko >doesn't need a dozen insignificant forks to remove thousands of telemetry probes firefox has
Yes, firefox is proprietary, but you use a significant free fork like GNU icecat or Tor Browser or Abrowser that doesn't have spyware.

Meanwhile, Vivaldi is spyware and there's nothing you can do about it; https://spyware.neocities.org/articles/vivaldi

I don't get the obsession with having a mail client built in so that some proprietary master can spy on your emails too - you just install Icedove or Evolution or claws-mail or Emacs if you want a mail client.

Emacs has a web browser and mail client already built-in.