Hi,
Some of the crowding problem with any type of TOS may be due to hyper-trophic muscles... Unless the surgeon finds a specific cause not related to muscle mass/crowding..
limiting any muscle building lifting would be a very good idea..IMO

We have had weightlifters posting at times, some had surgery and some not. I don't recall if most stopped lifting completely or not..

There are many other activities you can do that would be less of a factor for any ongoing TOS issues and/or chronic pain..

I just feel I need to say that as I had "just" ongoing RSIs and no one told me flat out that this can become a lifelong issue..
Actually one dr did mention it but he said it more in passing, and I was feeling better at the time, so I didn't pay attention til it was too late, and was beginning to be a chronic TOS like issue...

Now I'm at a chronic myofascial discomfort stage..milder in warmer weather but usually need some Aleve most days..

At your young age - I wouldn't risk doing activities that might cause long term pain or pain later in life.. It isn't fun..
Find less aggravating things to do.