I got a similar message as well when I checked the site. I also received the same emails and mostly ignored them because I thought it was only optional until they announced this.

I want to make sure, these needed to be accepted before 2PM (UTC) on Monday 7th of October 2024 ? cause in the Email only with word (IF).
Correct, there's an "if" part because once you submit the required images for level 2 KYC it'll be under review.