SSD Format unsupported or broken
Hello, I have a 2015 MacBook Air, it was running Big Sur but recently I've wanted to downgrade to Catalina because of better app support and battery life, to achieve this I was going to boot into recovery mode, wipe my SSD clean and install macOS Sierra which I would later update to Catalina.
After wiping the drives, back at the main menu in recovery mode I only had the option to download Big Sur so I restarted my Mac in recovery mode, and it started internet recovery and then I ended up in macOS Sierra's recovery mode, I attempted to download macOS Sierra through it but it kept on failing, and so I opened Disk Utility and realized that my drive and it's partitions were in APFS which is not supported by any macOS version older than Mojave. So I tried to erase all the drives and reformat them to macOS Extended Journaled, but that didn't work. I tried First Aid on the drives as well, as many times as I could, and most of the time it failed, after some work arounds none of the drive show up as APFS, they just show as unformatted disk images even though that some partitions claim to be macOS Journaled, I tried to delete the "unformatted" partitions but it doesn't allow me to, but when I scan the disks with First Aid they don't show up as corrupted, except the main disk, which gives out an error code 8. For that I've tried multiple terminal commands recommended online but all of them give out random errors overtime, I've tried commands with sudo in front as well, no luck.
And now every time I restart my Mac into recovery mode it goes into internet recovery downloading recovery mode every time because my SSD is no longer supported.
How do I wipe my drive clean, delete all partitions and reformat it, at this point I don't mind running Big Sur on it as long as I get it to work.
MacBook Air 13″, macOS 11.4
