And I use a fat client because I like having all of my email addresses aggregate to one place, and I like it when that software gives me a modern look and feel ¯\_(ツ)_/¯
All your mail in one place does not require a 'fat' client, something like Claws mail [1] (not in any way related to the recent LLM claws craze) can handle it without problems. Modern looks, well... it looks the way it looked about 25 years ago give or take a few iterations of GTK. Compact, efficient, to the point. If that's not your thing and you'd rather have large amounts of empty space and unrecognisable buttons it can be skinned to look 'modern'. In my startup sequence I launch 4 communications tools on one screen: gajim, telegram-desktop, signal-desktop and claws-mail in that order. Even though Claws gets launched last it appears first on screen because it is lightweight while the other three are anything but - Telegram is a native QT application, gajim is Python (nothing more needs to be said) and signal-desktop is Electron (even less needs to be said).
