I was trying to think why people would use it who have all their email in one web page already.
I would prefer a web client (since emails are already interlinked with the web so a tab for it is less annoying to me) but none of the options satisfied me so I just landed there. You either use a provider with already good web mail (gmail, proton, …) or you end up with Thunderbird.
But maybe I’ve missed an option. The best one I’ve had was Nextcloud Mail but it was really slow to load and search.
As a fan of Sega’s Jet Set Radio, we got Bomb Rush Cyberfunk by an indie which is so much of a clone that it’s considered an unofficial sequel, and we all love it.