I was about to start a similar thread. I've just migrated from SXOS to Atmosphere 1.0.0, Firmware 12.1.0 (Which given my technical know how should constitute a first class miracle)
Having trouble with Tinfoil and Nut, not recognizing the HDD I have NSPs on from the Switch.
Tried Goldleaf with Quark, not recognizing the Switch from the PC
Now trying Tinwoo and NS USBloader, the latter took me a while to find the link:
https://github.com/developersu/ns-usbloader/releases
Fairly certain I've given my PC Schizophrenia with the amount of drivers I've installed and reinstalled.
But this set up is working where the others did not, for reasons that are a mystery to me.