Ran a rpi for well > 1yr running Ubuntu server and 3cx off the SD card. Longest uptime was like 90+ days only dropped because my town regularly has power outages. Same card had been in use for a good year prior on another rpi doing a different function. Hasn't missed a beat. SanDisk gold colored one. It's now in another rpi...

Microsd's used to suck(had plenty fail years ago) but it seems like they have gotten pretty good these days.