It seems fast and really nice otherwise, so I'll keep fiddling with it, but so far I still prefer, for example, the "non-fancy" tabs in WezTerm (where the tabs are just rendered as line of terminal cells at the top or bottom of the window rather than GUI elements), and the way that modals ("Really quit WezTerm?" etc.) are also rendered within the terminal.
I'd also struggle to live without quick select mode[0].