I ran Home Assistant on a 3 then later on 4 (with a super nice case, NVME hat+stick, etc) but HA was not super stable. I, wrongly, blamed it on the HA software for a long time then I bought a Beelink mini computer and moved HA to it and I have literally not thought about HA since, it's worked flawlessly.
Maybe I had bad luck, maybe I happened to get 6 (I had multiple of certain Pis) defective boards but they always felt "unstable" to me. They might run fine for months then randomly need to be rebooted. I'm sure some of you will say "I've had a Raspberry Pi 1 running constantly since I bought it and it's rock solid", good for you, that was not my experience.
During COVID (maybe before as well) it came out that the company was prioritizing bulk sales over sales to individuals (or rather sales to companies that resold to individuals) which soured me. This news just further confirms my belief that the company and product I loved is dead and probably has been for some time. It was nice while it lasted.