The only way I get it to show the SD card is by formatting it manually. Which has to be done for each session.

But I never got it to boot. So this might only partially skip the symptoms of the issue.

edit:
Correction, does no longer work.

The Windows Software doesn't seem to work anymore in general:
https://spotpear.com/LuckFox-Pico-Linux-RV1103-ARM-Cortex-A7-RISC-V-Raspberry-Pi-Pico/forum-answer/119.html

And as it seems here support seems to be officially abandoned. The Wiki still references it along with the no longer existing ...