drag&drop hidden files

[Ruslan]

If you create a hidden directory (e.g .test) at the home directory (~). Files inside this hidden directory (~/.test/*) can not be sent using drag&drop. Tested on the telegram, firefox. If the same files from the ~/.test/test.png are moved to another directory, which does not have a dot after ~ at the dir name - the file can be sent by drag and drop. The Symbol link to the dir inside also does not work (ln -sf ~/.test/test.png ~/test.png).
CASES:

WORKS USING DRAG AND DROP:
~/test/.test/test.png

DO NOT WORK USING DRAG AND DROP:
~/.test/test.png
~/.test/test/test.png

OS: Kubuntu 22.04.1 LTS x86_64

$ uname -a
Linux gladdos 5.15.0-48-generic #54-Ubuntu SMP Fri Aug 26 13:26:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Libera.chat.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1991155/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]