Terrible Bluetooth Lag/Interference Since Monterey 12.4 upgrade

Yeah I never followed up here because of the useless reply I got from @DerekM87, but I've discovered that there are indeed a lot of people with Monterey 12.3/12.4 Bluetooth lag/disconnection issues, particularly those with external monitors or Thunderbolt hubs (which in the case of MacPro, MacStudio, and MacMini users is basically unavoidable). The problem does not appear to have anything to do with the Bluetooth hardware at all, nor signal interference, and it appears to get noticeably worse during higher CPU load times. While the mouse lag itself is obviously bitterly annoying, what goes way beyond that are the keyboard lag and connection disruptions. At times, it is impossible to type full sentences. I would be happy to disconnect any external devices that are problematic while Apple comes up with a software fix so that I can at least type properly, but the only external devices I have left plugged into my $7000 MacPro are my monitors and my webcam. I would be happy to buy an external Bluetooth transmitter, but the issue is software based. I am this close to trying to jury rig some kind of hybrid wifi-bluetooth device bridge using a second computer.

Such a bizarre Catch-22: either leave your computer running outdated operating system software and make yourself vulnerable to hacks and vulnerabilities, or else update your OS regularly and never know when your monitors, keyboard, mouse (made by Apple!), or other pretty standardized I/O devices will just stop working entirely. Every system update has become a headache.