Try getting an SD Card with NAND Flash and ideally with an “industrial” background. I use “Silicon Power 3D NAND” and works so far - also got some year-old SanDisk also…
or - if you really want to rule out wear-outs - just use an external USB-drive (but then not an USB-Stick, because, that one is basically an SD Card wrapped in an USB-controller!) and at least move root to an external drive. openHABian lets you do that hassle-free within the openhabian-config at option 37 “Move root to USB”, and read here:
last not least (mostly untestet as of yet), you can also boot from USB (at least with Pi4s):