You can manually remove all of the previous drivers and their GL32 counterparts, your flatpaks will still run as long as you have the newest drivers.
I’m not sure why they don’t get caught by the --unused flag, but they are definitely not needed from the flatpaks I’ve tested with.
Regardless, even if they backpedalled even further I feel as if the trust is already broken.
Oh well unity, you were fine tool for independent developers before the corporate greed hit.