>>106508985
It's a rite of passage to destroy your file system with dd. At least now you know to not run write commands on a raw block device if there's a file system on there and to always keep backups, right?
Maybe ChatGPT can guide you through the recovery process. Just make sure to work on a disk image instead of the real disk. The files should still be there but the GPT/Superblock might be fucked, but both make redundant copies of themselves usually.