I highly recommend checking this forum for any info:
https://www.f150lightningforum.com/forum/
Invites come in "waves." For the 2022, there were seven waves, and I got in one the sixth wave. I ordered May 20, 2021 (day after launch). It is very hit or miss who is getting invites to order. You get an email inviting you to build your truck. I think they are still working through 2023 invites right now, but the Pro and XLT models may be running out. When I ordered, only the Lariat and Platinum models were left to order....
Good luck!