I’ve got a mix. I have 8 or so kasa plugs plus two power strips. I also have z-wave light switches and outlets in SmartThings. The kasa plugs have been fairly resilient but even they have problems occasionally when I lose my internet connection or there is a power failure. However, they do recover if I just unplug them and then plug them back in. Haven’t had any issue with the power strips nor the z-wave stuff. Planning to purchase some YoLink switches for my shop to control the overhead lights, mainly because they will work without internet and the shop is about 300’ from the house which is one of the selling points for YoLink.
I also have 12 Wyze plugs, but only four are the newer, problematic ones.