I use a Pixel 4a as a second phone and consider Google’s approach to be rubbish…
3 years worth of updates is pretty shit… my son’s iPhone 5c got updates for over 5 years (and I think there were some security issues they patched after that even)
At the moment I’ve got a perfectly usable Pixel 4a that I’m going to have to replace as it’s not secure enough for work related stuff anymore