Around what level should you get to in a language before traveling to a foreign country that speak it in order to learn the most that you can from your trip?

A1 is just total confusion. If your trip is limited in duration it is just going to be a whirlwind of swirling noise.

A2 is fun. But expect to get confused a bunch. Speaking will lead to a lot of dead ends. Where you just lack the vocabulary to continue and come away from most interactions frustrated.

B1 is great. I saw major gains at least in my speaking. Those dead ends now have circumlocutions to get around them. I would sill hit brick walls occasionally but it was mainly where I couldn't properly convey the subtleties of what I was trying to say. I would exit conversations wondering if I properly got across the nuance. It is one thing to say for example "i like classic cars" but an entirely different thing to convey the idea that "while I enjoy going to classic car shows and love to see what they looked like when originally made, and what crazy things people can do with them these days, I do not have any desire to do that kind of work myself."

I will let you know once I get to B2 and have traveled. 8)

You can't treat that as "comprehensible input" until you can comprehend (understand) most of it. That is probably B2 level.

Many people have warned against moving to a country and expecting you will learn the langauge. The trick is that almost everyone you talk to is NOT interested in being your language tutor for free. A paid language tutor listens to you and figures out what you are trying to say. Nobody else does.

You can spend time in a place, and do whatever you need to do there (getting the correct bus or train, buying things, getting directions), even at the "know nothing" level. It just doesn't teach you the language.

Honestly u can start gettin real benefits from immersion at pretty much any lvl, even as a total beginner. like sure the more of a foundation u build beforehand the more ull be able to absorb n interact while ur there but dont let that stop u from goin if u have the opportunity! Id say aim for at least a solid A2 level if u can that way ull have enough basics to navigate daily stuff talk to ppl order food etc itll make the experience way less stressful but the real key is to just dive in n make the most of it no matter ur level talk to everyone even if u make mistakes carry a pocket dictionary or translation app take language classes while ur there if u can the motivation of bein surrounded by the language can lead to crazy fast progress so book that trip n dont stress too much about havin the perfect level ull learn a ton no matter what!

I'm abroad in a country that speaks my TL right now and I'm probably around B1 (idrk the levels very well tho) overall but unfortunately I'm not equal in all '4' skills.

My speaking, reading, and writing are great and I have no issues communicating what I want to. However, my listening is definitely at a lower level and I can't understand speaking at a normal speed. This has made it harder for me to learn as much as I wanted to.

So I guess I'd recommend being good enough at listening to comprehend at least 60-80% of what a full speed speaker is saying. I understand 50% at most tbh and it's a little frustrating, especially because I feel like I can do better.

A2 you’ll pick stuff up. At B1 you’ll actually be inching towards fluency.

Going as a complete beginner is a lot of fun when all of the sounds are completely new (not to mention the culture and everything). You can pick up a lot of words and phrases if you choose to.

If you want to have many simple conversations with natives, get to B1. B2 for longer and more advanced conversations. A2 is fine for just getting around I suppose

I think traveling to another country to learn the language is a silly, or at least, extremely inefficient idea. I don't think one would learn anything from that, only practice what they've already learned, unless they're gonna be staying for a couple of years. And I think doing this through books/movies/online content and interaction is much more efficient in any case.

I'm assuming an absolute beginner wouldn't be able to take full advantage of the comprehensible input of everyday interactions in that environment

Well, checking your assumptions with other people first was a great idea

It depends on how you learn, I think. For example, before my first trip to Italy, I listened to the first cd in a 3 cd series which basically covered a plethora of travel phrases and most common verbs in the present tense and that was enough for me to get by as a tourist. It probably wouldn't have been enough for me to live there though. Now I am at a much higher level and I do live here and I do pretty well.

B1 if you really can’t wait, but B2 is where it’s at. For example i Can now, after 6 months of spanish, understand what they’re trying to say in every sentence even though i don’t know all the words. So the rest Will come from context. Edit: I Can finally enjoy spanish YouTube.