Murmansk wrote:

has the technology improved

IME not really, I've got a Bosch GMS120

https://www.boschtools.com/ca/en/boschtools-ocs/stud-finders-gms-120-35140-p

I would *not* recommend it, it can give false positive and false
negatives for mains cabling whenever there's any plasterboard within a
few feet.

A 20p neodymium magnet is far more accurate for finding joists/studs
provided there are nails or screws in them.

As for copper pipes it *is* actually quite good at finding those, even
where they pass within brick walls.