“Sway is a wayland compositor”. Does that give a consistent experience across applications? Or at least a taskbar that doesn’t visibly add and remove icons every time they refresh, recalculating sizes and shrinking and growing all the time? Which was kde’s state last time I used Linux as my main deskop…
In a way, yes. It stays out of the way - in fact, there is no desktop. i3 is a tiling window manager, and rather minimalistic at that. Sway is a wayland-native reimplementation of i3, with the same (lack of) appearance, and i3 configs work with sway pretty much out of the box.
To launch a program you either hit a hotkey combo of your choice or use <win>-d to bring up a top-of-screen text menu bar with full text search to find (and launch) your desired software.
Stating the obvious: I've never been a fan of desktop environments. I found them confusing even back in the GEOS (C-64) and windows 2.x days.