One thing I found when me and my wife lived there for a year about 13 years ago was that almost instantly, everyone knew us and where we lived despite never noticing them before! Whereas here, I’m not sure who lives 10 houses up the street....
Might be a bit OTT to say I find it boring as I’ve always plenty to do down there, I could spend years in the garden for starters, but it’s just not for me. I like to mix the busy with a bit of quiet so to escape every few months is perfect.
Another thing for the OP, quite a few people are thinking of moving west as they believe they will always be working from home now so want a nicer space, prices have already risen in places like Nabarth
(an hour ish from Cardiff) and I’m sure they will continue to farther west. You can get quite a lot for your Cardiff house out west too, detached, gardens and sea views for under 450k