I certainly do. That said, I struggle to find another browser that's any better and most are worse. So I accept Firefox as the lesser evil.
I also want to be able to use the same browser at work as at home, and my workplace banned the use of Brave when it started including a VPN.
On Macs and iOS, and iPadOS, it's clunkier than Safari, but less clunky than Firefox.
Perhaps the Windows experience is similar.
I'm not normally a fan of Apple at all, and I have no interest in using Safari myself, but here I am glad that they've so far refused to jump on the Chrome bandwagon: it's good for keeping the web standards-based so we don't have a repeat of the IE6 days.