Connecting your account from two different computers might have triggerd this. On a glance that might look like a hacked account. Plus there was a lot of uploads on your account.
Practically no one will search your games if you are not famous elsewhere. And at that elsewhere you can distribute a direct link, no searching needed.
The quarantine is of course annoying, but it will go away.
And while Itch might help developers more, it also might protect users more. There do be hacked accounts. I saw several hundred of those this year. You do not have to pay 100 $ upfront to publish, like on Steam. This alone protects against a lot of spam and scam. But it also gives a huge budget to check against any hacking and to expedite any manual checking. Unfortunately, there is no premium service available on Itch you could pay for, so response time of support can take several weeks. They also have to deal with real scams that also got quarantined. Oh, and they probaly will not answer at all, just put your stuff out of quarantine.
If it gets indexed is the next question. You already were unhappy about the uploading, so maybe some of those project pages are not up to indexing standards https://itch.io/docs/creators/quality-guidelines
I glanced over your projects. This here is just a video. It violates categorisation as a game and is basically tag spamming. And the descriptions of all the games I glanced over read AI made, which might indicate shovelware. It is possible, that several of your games were reported for miscategorisation, tag spamming, regular spamming or other things. Which might have triggered quarantine.