Just reporting in. Pixel 7 on T-Mobile and nothing yet. I tried that trick by turning off the SIM and checked over Wi-Fi too and nothing. I'll get it when I get it, no big deal.
I tried sideloading an update several times earlier this year and just had a lot of problems. It kept failing half way through and I got annoyed and gave up. Back in the Cyanogenmod days I would flash updates almost every week. I've just reached a point where I don't feel like messing with all that shit anymore. So I'll wait. lol