I'm using the latest stable version of DO and have problems with the display of files and folders, DO on the left, Windows Explorer on the right:

When I switch to the standard theme it's even worse:

DPI scaling is set to 100 %, font is Segoe UI size 9.
Thank you.
I've tried to recreate a similar setup to your screenshots but haven't been able to reproduce the problem so far:
If Preferences / Miscellaneous / Advanced [Information Display]: display_folder_extensions is set to True, try resetting it to False.
If you want, you could send us a config backup so we can try to reproduce the problem with your exact settings. To make one, use Settings > Backup & Restore. Please send it via private message.
Thank you, too.
Strange enough the problem vanished after I had changed the DO language from German to English!
Does the problem come back if you switch back into German?
No, all good now.