Not sure if I'm just getting older, but the less things/complications in my home, the more peace of mind I have. Been watching the youtube LTT channel on his smart home and I feel all the things going on would drive me crazy. This doesn't apply only to tech, but even for my next house (Looking into passive homes, least possible HVAC footprint, floorplan for minimal plumbing/electrical).
Every time I think about expanding this, I remember what a PITA it was to setup the basic stuff. And I don't bother. I'll walk my lazy ass to the switch instead.
Doesn't help that Smartthings is a dumpster fire of shitty UX that glitches regularly. Anything "better" like HomeAssistant is the rough equivalent of using Linux desktop in the late 90s/early 00s.