Okay, the big problem here, I believe, is that the directions you followed were for the Pro 1, not the Pro1x-- so you flashed Android 9 for an 835 SOC to a device that ran Android 11 with a 662 SOC. Unfortunately, I'm not technical enough to know if you can recover from that. I hope someone else here has that knowledge and can help. The instructions for flashing the Pro1x were here.
I say "were" because it now looks like you have to request access when you click on the google drive. You can try that, but if you don't succeed DM me, I have the files. But you need someone else to aff