Model S Plaid: Still stuck on FSD Beta 10.4. What to do?

[WilliamG]

I just don't understand Tesla at all. You'd think they'd want as much feedback as is possible, especially from their slower-selling/delivering vehicles like the new Model S. And yet, here I am, stuck on 2021.36.8.6 (FSD BETA 10.4). There's only one car on this version, as per TeslaFi. I've emailed the FSD BETA team, and they don't respond.

Not sure what to do here, but it kinda sucks being forgotten about...