New beekeeper

Hello all, I’m a novice that’s done a lot of reading but has no experience.  I bought some used beehives and set them up over a year ago.  This year, a swarm moved into one.  They seem pretty robust, are cleaning it out.  I just want to leave them alone, but also will not “help” them in any way, besides the following.

I am curious if anyone on this site has tried these things (copper on the entrance, magnets on the hive), and whether they think it helps.  To me the copper makes a lot of sense, the magnets are a little out there.
https://www.youtube.com/watch?v=VCNBsi8HehY

I’m waiting for copper flashing to arrive to try that, but in the mean time I put magnets on the hive in the proper orientation (after some study, it appears you just want a north-south facing hive ideally, but you put a magnet on each side of the hive with the same polarity orientation as the poles).  The bees, at the very least, don’t seem to have changed their behavior with the magnets attached to the hive.

I don’t really want to “keep bees”, I just want to provide homes for them to thrive and survive, so the goal is to have bees that are capable of doing their thing without interventions

Where in this big world are you located? Answers to your questions may depend on us knowing your climate. I did not watch your posted video so I can't comment on it. However, In my region it is recommended to place the entrance of the hive facing east, this helps the bees get an early start to foraging. Also full sun is strongly recommended here, as this assists the bees in fighting small hive beetles, while shade is favorable to the beetles.

It is often stated that all beekeeping is local. The needs of a colony may be very different in your region.

I am in traverse city, Michigan. The hive is located so they get good sun from dawn to noon and then shade after that.  Here’s a read only link, same guy. https://www.electrocultureandmagnetoculture.com/bee-hive-saving.html

I have accidentally populated my worm bins with pseudoscorpions too, and have read they may be helpful against varroa and hive beetles, so I may try to introduce them in and around the hive

I added a copper plate that doesn’t span the whole opening, and a bucket of biochar nearby that is heaped above the water line (see other posts I made two years ago about curious behavior of bees coming to my buckets of biochar).

They aren’t avoiding the copper plate nor does their behavior seem different than when it wasn’t there