Remove SD Card from ARGON ONE V3 M.2 now SSD boots?

I’ve got my ARGON ONE V3 M.2 booting from the M.2 SSD (ADATA Legend 700 512GB). Can I remove the SD card, now, or is it still needed for the initial boot stage?

I’ve got all the other options working and the Pi5 runs like lightning from the SSD. I have still to try the remote because I am waiting for rechargeable AAAs to arrive.

If it’s realy booting from the SSD, you can remove the SD card.
Or remove the SD card and see what’s happen.