Can't change runRoot in rootless mode

[Meister1593]

So i was discovering rootless options in containers/podman#18375 podman issue and when i discovered rootless mode, i of course wanted to change runroot path, but looking through code, it seems like theres no code related to changing runroot in rootless mode...

The related function is getRootlessStorageOpts, which feeds output from underlying functions (and as such, getRootlessRuntimeDirIsolated), which doesn't use runroot from configuration.
opts.RunRoot = rootlessRuntime changes it's runroot to be used from the getRootlessRuntimeDirIsolated, and later on never updated to be used from system env if it was overriden by conf files, like it is done with opts.GraphRoot, err = expandEnvPath(systemOpts.RootlessStoragePath, rootlessUID).

So it seems like there should be code related if runRoot is being overriden from configuration file, it should be placed instead of defaults.