I started out playing the piano. I had ten years of classical piano training, and also played the trombone in band. I taught myself how to play the guitar and bass, and when I was in band, the trombone section was next to the tuba section (if you can call one guy a “section”). I always learned my parts quickly and the tuba player did as well, so we were always bored while the less motivated players were struggling through their parts. So I would switch instruments with the tuba player, and I unofficially learned how to play the tuba. If the band teacher ever noticed, he didn’t care (probably because we both knew our parts well).
I also picked up a trumped a couple of times and was able to make some reasonable sounds out of it.
The point is, I can usually pick up a new instrument and make some sort of reasonable sounds out of it with a few minutes of tinkering around with it. Or I used to be able to. I’m a bit rusty these days from not playing anything in about a decade. Just put new strings on my guitar over quarantine here so starting to get a bit back in shape.
But…
The only instrument I ever picked up and truly struggled with was the violin (aka fiddle). That is the single most unforgiving instrument I have ever touched. It has a smooth fretboard with few markings on it, and because the fretboard is so short, if you are just slightly off, you are playing the wrong note. REALLY wrong. And the bow isn’t just additional complexity. It is also completely unforgiving.
It is a truly miserable instrument to try to pick up and fiddle with (heh, literally).
If you want to truly annoy the fuck out of your neighbors, then the violin/fiddle is the instrument for you.
Banging out simple chords on a guitar is fairly easy. The most difficult part for beginners is not having enough finger strength and callouses to hold the strings down properly. The bass guitar is also easy, especially for simple pop songs that just thump out an easy bass line. The ukulele is easy,unless you played the guitar first and then all of the chords don’t make sense (it’s actually not that hard to figure out). The recorder is simple and dirt cheap. I have never played reed instruments so can’t comment on those.
The banjo (IMHO) requires fingerpicking to really sound good. That’s a bit advanced. Go for it if that’s what you really want to play, but that’s more difficult than just banging out chords on a guitar or ukulele. You can play chords on a banjo, but that doesn’t sound as good (again, IMHO). That “banjo sound” that everyone likes comes from fingerpicking.
The harmonica is fairly easy, and inexpensive, though they do make more expensive models, like most instruments.
Brass instruments require a bit of work to figure out how to blow properly (it’s more of a phbftbftbft than a blow). Probably not a good choice for the OP though since they aren’t exactly quiet.
I’ve never played a lap harp or didgeridoo.
Based on the OP’s requirements, ukulele or harmonica would be at the top of the list. Or both. You can get both for under $200 and end up with decent instruments.