Total Commander

It would be useful if specifying \ at the end in the filter field (cm_QuickFilter, cm_ShowQuickSearch, Ctrl+S) after the entered text led to hiding files. This would make it possible to navigate to the desired folder faster, given that the cursor may be located on some file.

Not a bad idea, if feasible. Support+

Support +
Currently, I simply press one of my buttons to only show files or dirs.
This can be done before or after entering the search text.

Well yeah. Or you have to press Home. But backslash will be more intuitive and without unnecessary defocusing.