Maybe this is just because of the Covid situation, but, speaking as a current freshman, I would be a little cautious about going for FOCUS. On paper, the program seems great, but looks can be deceiving. I know a lot of people who really regret going for them; a lot of them are in FOCUSs not related to their major, so they basically have two classes taking up wasted space. A few of the programs are stupidly easy, and a few are stupidly hard. That said, I do know some people who really enjoy their FOCUS, and it does probably help with meeting people your first year.
As for competitiveness, it’s a mixed bag. I think they make you apply and write essays for three or four of them, and the FOCUS people do a pretty good job of trying to let as many people who want to take a FOCUS into a program. They’re rolling admission, so if you really want one, I’d apply right away when they come out.
There are several FOCUS topics, and I think most of them are interdepartmental and/or cover more than one topic, which is part of their charm. I would definitely, though, weigh up that path as opposed to taking 2 useful intro classes that you can use to get a head start on your major, or just taking 2 random classes that interest you more.
Hope this helps