Ask you for help or advice.

Not so long ago, I discovered that gtk2 applications started to look awful. Turning to the settings and starting to deal with the themes, I found that, it seems, gtk2 applications ignore style files (when changing themes, only the color gamut changes). I am sure that in plasma 5.14 there were no problems with this.

This is how gtk2 applications look:


This is how gtk3 applications look:


This situation happens with absolutely any theme that I am trying to use.
At the same time, the file ~ / .gtkrc-2.0 is present and changing, if I change themes from settings.

I went online with this question and found nothing.
What could go wrong? How to fix it?