Just in case you're not sure how to deal with it, you need to request a review via the Google Search Console. You'll need a Google account and you have to verify ownership of the domain via DNS (if you want to appeal the whole domain). After that, you can log into the Google Search Console and you can find "Security Issues" under the "Security & Manual Actions" section.
That area will show you the exact URLs that got you put on the block list. You can request a review from there. They'll send you an email after they review the block.
Hopefully that'll save you from trying to hunt down non-existent malware on a half dozen self-hosted services like I ended up doing.
It's a bit ironic that a user installing immich to escape Google's grip ends up having to create again a Google account to be able to remove their Google account.
Indeed. Thankfully, this isn't the first time Google has caused an issue like this, so I'm familiar with the appeal process.
Reviews view Google Search Console are pointless because they won't stop the same automated process from flagging the domain again. Save your time and get your lawyer to draft a friendly letter instead.