So stick had to come out. The full filesystem access is now reserved for apps that manage full filesystem (e.g. file explorers) and that's it. Scoped storage APIs were introduced in 2013, 11 years ago and Play started enforcing them in 2020, so the experiment with scary warnings was running for 7 years and developers refused to give up on that sweet full private file access.
Granted, SAF is quite a shitty API.