I think we have to give credit where it’s due and a lot of Linux apps (mostly the non-distro ones, so no Gnome apps etc.) Do have quite dated interfaces. I can’t find a nice mail client except mailspring and bluemail, both of which then come with some features not working (depending on your distro etc.)
My brother in Christ we have whole communities dedicated to showing off how good Linux apps look. Meanwhile there’s none for windows and apple XD
I think we have to give credit where it’s due and a lot of Linux apps (mostly the non-distro ones, so no Gnome apps etc.) Do have quite dated interfaces. I can’t find a nice mail client except mailspring and bluemail, both of which then come with some features not working (depending on your distro etc.)
Thunderbird is quite nice with the new updates
Here is a screen-shot of latest Thunderbird (ESR) Email client: https://www.thunderbird.net/media/img/thunderbird/new/screens/mail-screen.png