I have posted about this before but can't find the thread and can't remember what they were! It was a few years ago.
I found these tiny bugs on my windowsill in my spare room and there are about 20 on the sill. I found a few on the floor but my spare room is going to be a dressing room and it is full of clothing, plaster board, tubs to mix plaster. So every part of the room is full. Not easy to look for an infestation.
When I had them before I found them in my room and bathroom and I just kept hoovering them up and they eventually went... or that's what I remember.
I recently moved my DC out of the spare room into their own and I emptied the room and then put all the above things back in there. This was during lockdown around the start of it.
So we've managed to get a load on the windowsill and some on the floor within 7 weeks or so. I hoovered the ones on the floor the other day now they are back.
I really really hope it isn't a bad infestation but I dnt remember getting this many before. Also I did google and they look like carpet beetles, it's also said if squashed they leave a brown smear. I squashed one and I just heard a crack sound but didn't leave a smear.
Sorry if pic isn't that good it's hard as they are so small. Also almost all the ones on the windowsill have died.