Maybe I'm not reading the question the way meant it, but you cant defer compensation you don't have. If you have $20,000 in compensation, you cannot defer more than $20,000 under any scenario.
I think that what you are really referring to is whether you can contribute catch-up in excess of the annual additions limit in 415(c), which is the lesser of $61,000 or 100% of compensation for 2022. Catch-up contributions are not considered for annual additions, so it is possible to have total contributions in excess of the annual additions limit, and total contributions in excess of compensation.
What your scenario is missing is employer contributions. For example:
Does that help?