I got curious about what's exactly is this version since it just jumps from v0.4.3.5 directly to v0.7.5.7 and is also a "Alpha" with no changelogs 🤔

Honestly, I'm not actually sure. I think 0.4.3.5 was specifically for 1.21.0 and the nI marked it compatible with 1.21.1, but I also changed it to a different build system. Functionally they should be identical.