So fundamentally, I’m an idiot with all the ungodly habit to dismiss confirmation dialogs first plus think after.
I wanted to make a 2nd Windows installation and deleted the incorrect partition in the installer.
I immediately made a GParted live USB and ran
testdisk . It doesn’t display the freshly lost partition, but it does show types that are months or even many years old(??? ).
The parition offset (sectors) is known and the SSD unplugged so TRIM doesn’t operate (fingers crossed it didn’t already) before I know the exact route I want to take.
What are my options aside from professional help? CLI just isn’t an issue if that changes anything.