If you don’t have any tracks from a streaming service, it’s possible you inadvertently imported the same folder(s) twice.
Can you share a screenshot of Settings>Storage?
This often happens if a person has a structure like:
NAS>Music>Newmusic>iTunes
And they are watching the folders:
NAS>Music and NAS>Music>Newmusic>iTunes
Yep, you’ve imported the Music folder twice. 29,826 X 2 = 59,652 tracks.
Turn one of those locations off (disable via the three dots). Wait a minute. Then go to Settings>Library>Library Maintenance>Clean Up Library. You’ll see 29,826 files that are associated with a disabled storage location. Click that to get rid of the duplicate entries in your database. It doesn’t touch the files.