Are you also aware of those with laptops that have integrated graphics cards aren't getting invites? I have a Razer Blade 15 with an rtx 2060 and I haven't been invited for either flights. Did the dxdiag well before 9/12.
Edit: just saw the #2 edit. Thanks for addressing, ske7ch. Appreciate the hard work your team is putting into resolving these issues.
Just updated my main post up there but yes, digging into this more - it does indeed look like an issue where only the integrated GPU is detected, not the dedicated GPU. Unfortunately I'm told this is not a trivial issue to resolve and as such, very unlikely we can address for this flight. Wish I had better news, very sorry for that.