I just can’t find a decent email client that looks like it’s from the last 20 years. Geary and Evolution both appear to be pretty modern but something about using Gmail with a Yubikey just doesn’t work and neither of them will connect to my account. Both on Fedora and OpenSUSE. Thunderbird works but it’s so old fashioned and Betterbird doesn’t look much better. What’s everyone else using?
I’ve switched my mum over to Evolution a few years ago, because it does some things better (message list can be configured to be less dense, which has been solved with Thunderbirds redesign). It’s a great email email, but has it’s own quirks because of how much it does, just like Thunderbird. Since I’ve used the latter for longer, I’ve no reason to switch.