Thank you!! I've been saying this in the comments and even added it in the FAQs
"WHY DO OTHER HAVE THEIR MANGAS BACK ALREADY, WHILE MINE IS STILL MISSING?
- please note that it's not about how old your acc is, it's about when youve started marking mangas. think of this like we're reading through a giant BOOK of everyone’s manga list, arranged by the exact time each manga was added (aka timestamps). Each timestamp is like a page in the book, and we read them from the oldest timestamps to the newest. Right now (as of writing this post), we are reading timestamps from March 2020, so any timestamp dated later than March 2020 wont appear YET"
As far as I remember the "timestamps" I mentioned are arranged from oldest to newest BUT they're also grouped according to, Already read, Reading, and Want to read. Which is why if you noticed, AlreadyRead mangas are coming back first. And somewhere in between those groups or at the end, the non-rated mangas will also be back as well as your comments

For anyone confused, mgg isn't restoring lists user by user starting with the oldest accounts. It's going by date added. Everything that was ever added to someone's list in 2014 then 2015 etc. If you're a 2019 user and started recovering some of your stuff, it doesn't mean that those of us with accounts made in 2015 recovered everything. We're all still waiting. It has been extremely slow and the further they go in time the slower it will be esp with how many new accounts were created in 2021. Be patient.