I tried a dep override:

{
    "version":1,
    "overrides":{
        "adaptive-tooltips":{
            "-depends":{
                "minecraft":"IGNORED",
                "yet-another-config-lib":"IGNORED"
                }
            }
        }
}

"yet-another-config-lib":"IGNORED" is there because it wouldn't agree that 3.0.3 is newer than 1.0.2

It did not work.

Log: https://mclo.gs/mZHnmu6

This definitely shouldn't work. There was a huge refactor in 1.20 that breaks all of Adaptive Tooltips.

Any indication on when a 1.20.1 compatible version might be possible?

Very soon. 1.20 support is done, I'm just waiting to release YACL 3.2

YACL 3.2 has been released. Anything new?