I don’t know the specifics behind why the limit is 72 bytes, but that might be slightly tricky. My understanding of bcrypt is that it generates 2^salt different possible hashes for the same password, and when you want to test an input you have to hash the password 2^salt times to see if any match. So computation times would get very big if you’re combining hashes
While you didn’t name names of what app you were using for streaming, I just got into a similar situation with my dorm and what I found worked was using wired ALVR for my streaming. Not wireless, but good, long right-angled USB-C cables don’t cost a fortune. https://github.com/alvr-org/ALVR/wiki/ALVR-wired-setup-(ALVR-over-USB)