As noted…you need to check each college separately for their required submissions for financial aid consideration and the DEADLINES (which you don’t want to miss…and they will vary from college to college, and also for the type of application ED/EA often has an earlier deadline than RD).
I saw " 2024-2025 FAFSA Available in December 2023 " so the application will need to be filled in December?
Current info is that the FAFSA might not actually be available until January 
Do I need to go to individual college websites to check FAFSA deadline or Is it same for evry college?
You need to check each college website carefully…and also for the type of application you are completing. EA or ED applications sometimes have a priority deadline. (Of course, you can’t submit the FAFSA until it is available to submit.)
The CSS Profile apparently is online now…but I don’t think it can be submitted until October 1. If your colleges require the Profile, the colleges will have a deadline date for that.