I’ve been running it for over 10 years now across a few different PCs and stability-wise has been a mixed bag for me.
First PC was unsurprisingly flaky. Nvidia optimus laptop where the optimus drivers were still being figured out for linux. So I was running the testing repo to get SOME semblance of usability. Plus a whole host of other issues.
Second PC was perfect, never had a single issue with stability the 7 or 8 years i used it. Still functions, but the graphics card was starting to struggle in games. So now it sits silent.
Latest one was perfect for a few years, but in the last few months has been getting weird. Some graphics driver/kernel issues (known bugs, now resolved). Plus other weirdness I thought was related but isn’t. Some applications just wouldn’t launch, or launched if I started them immediately after logging in, but not if i did anything else first. The plasma 6 update messed up a lot of stuff for me too. So just yesterday I reinstalled Arch to another SSD and symlinked some stuff and that has solved most of my issues. The thing is, it’s a bleeding edge rolling release distro. Sometimes things do break for me, but most of the time it’s fixed a few days later. What happened to me recently hasn’t been an issue since the old crappy laptop, and I am running a LOT of stuff from the AUR. So to summarise my essay, generally pretty stable lol.
Seems fine to me. If you click on the result without hitting enter it copies it to your clipboard. Hitting enter sends the result to your register for further calculation or hitting escape clears it. This all seems fairly logical to me.