At least here is a following option that could help somebody, but it is not the solution, too.
Tools > Preferences > Show settings = All > Playlist: [ ] Automatically preparse files
Great! It works! For my needs of showing just 'normal' file names on playlist. Thank you so much for the solution! I registered on this forum just only to thank you
I cannot believe how long this has been an issue. I have been looking everywhere for a solution and this just does not cut it. All this option does is display the correct file name UNTIL you play it, then it changes it back to the metadata tags name. This is honestly ridiculous that it is an issue going back, at least, five years if not more. All my searching only ever brings me back here to this thread or to articles telling me to download a third party software to change metadata tags. No one has time for that. It is absolutely mind-boggling to me that this has been going on so long, with no fix when by all accounts, it should be simple to include an option to check/uncheck whether to use metadata tags for file names or not.
I made this account specifically to comment on this problem as maybe if more voices ask for this to be fixed, maybe, maybe something will be done. But I won't hold my breath.