Be careful at step 5 to not force too much, as I broke a bit of my back panel, but I guess it's because it was already weakened by some falls.
In step 13, the back panel didn't come with the sticker, but did with the back panel connector which didn't stay connected to the inside of the phone.
One 4.0 mm screw was missing before I even used the T3 Torx.
It seems like my Pixel 4 was a refurbished one, as I didn't have the yellow adhesive strips of step 22.
For the reassembly, I highly recommand you to do step 31 and step 29 before the step 33 and do not forget to press down sides, as advised in step 16. Reconnecting the white antenna cable to the replacement charging assembly and to the inside of the phone was a bit tricky and I think I succeeded only thanks to luck.
Repairing the phone took me about nearly 3 hours, 40-50 minutes were used into the disassembly. It was my first reparation with an Ifixit guide.