I checked in the Arch wiki and installed the correct driver. Using Manjaro, this was all I had to do to fix my issue.
I installed broadcom-wl-dkms along with the linux headers of the specific kernel version I’m on atm → core/linux612-headers 6.12.17-1
Then I blacklisted some drivers:
blacklist bcma
blacklist b43
blacklist b43legacy
blacklist brcm80211
blacklist ssb
I’m gonna mark this as solved. Thank you all for the patience to reply.