@Narbray no point in arguing with FSE people about that stuff. they dont wanna understand that the average user will never go from 0 to 100 FOSS.

1. its a gradual process. first you make people aware you can run better FOSS software on a proprietary OS.
2. then you make the FOSS OS run just as good as the proprietary one and would you look at that all the FOSS software they already used works best on FOSS OS.
3. then maybe someday if we lucky and have enough people that care we might get the proprietary software become FOSS.

the last step very likely is a pipe dream but like you said even getting people to step 2 is a desirable improvement where change is possible.