For last year, the 85 scholarship cap was simply removed, for those under scholarship already, plus new signees (subject to the 25 per year limit IC rule), plus (apparently, from looking at Oregon) walk-ons.
What that means is this: Miami had 9 seniors going into 2020, and they could all come back in 2021. If IN ADDITION you signed the 25 new kids, you could exceed the 85 cap. But you couldn't go out and find 25 extra kids, just because the 85 cap was gone for one year.
Then, by 2022, you have to be back at 85 total for scholarships.
So if you look at any of those schools, for instance Oregon, you have to: (a) remove any walk-ons (usually, the zero to two star guys), and (b) remove any kids who will be leaving. Whatever that number is, let's say it was 110, you will need to be back down to 85 for 2022. Whether you get to that number from graduation, NFL draft, transfer, etc., it doesn't matter.
Your post was not offensive in any way. My response was overly sarcastic, and for that, I apologize to you directly. There has been a ton of debate and analysis for the past 2 years, and there are a ton of threads on this, but it is no problem if you were unaware of this.
All the best, happy to answer any follow-up questions.