Interpreting fsck_hfs result
You are trying to check the file system on disk0s2 with the wrong tool. fsck_hfs targets HFS file systems. Your main drive is formatted to APFS though.

The output of sudo fsck_hfs -fy /dev/disk0s2 in your screenshot shows the first block of the/an APFS container. This is indicated by the NXSB magic string in the third line.

The proper tool to check APFS containers or volumes is fsck_apfs!

Check man fsck_apfs for further details.



Since diskutil verifyDisk|verifyVolume|repairDisk|repairVolume [device] also calls fsck_apfs or another appropriate fsck_* tool with the proper flags I'd prefer this command instead:

diskutil list # to get the device identifiers
diskutil verifyDisk disk0
diskutil verifyVolume disk0s2
diskutil verifyVolume disk1s1


If required, repair the container/volume with:

diskutil repairDisk disk0s
diskutil repairVolume disk0s2
diskutil repairVolume disk1s1