Me as well. Firefox doesn't annoy me with any popups. I've used it for 5 years now as my daily driver on windows and macOS. Sure, I've gotten maybe TWO popups in that time asking me to try the VPN, but I honestly can't think of any other popups that genuinely annoyed me. Compared with Chrome it is a clear winner.
> shitty VPN
The Mozilla VPN is a rebranded Mullvad VPN, AFIK which I understand is very good.
Even if there are a few more nags than Chrome or whatever, I guess, I'm happy knowing that I'm making it a bit harder for Google to know what I'm doing online.