I'm in the 'anything but chromium' camp. Currently running 78esr, but I'll be getting the changes eventually. I've poked around on the secretary's machine, and the newest version is "fine". That's with a lower case "f". Not much to love, nothing I absolutely hate, but the whole direction they've been going in is hugely disappointing. They're trying to outchrome chrome, and that isn't gonna happen. You'll always be second place at best, and nobody on earth can compete with google's advertising presence.
Firefox is a niche browser at this point, and I don't really see it changing. Instead of trying to beat chrome, embrace your power users, and make it the best browser for them. They're the ones that are gonna advertise to the normies, and even if the normies won't use all the awesome features you're yammering on about, they'll think "Yea, that sounds pretty good, and I trust your judgement". They aren't gonna beat chrome doing that, but they aren't gonna beat them anyway. Being a solid niche browser with a loyal following is better than hemorrhaging users as they are now. There aren't enough 'anything but chromium' users that'll put up with constantly being shit on to maintain a browser.