VK has an official music streaming service since ~2017
Right now all vk.com URLs are forced to be social networking

• https://vk.com/audio
• https://vk.com/blog/vkmusic
• https://tass.ru/ekonomika/4220669

Artist:

• https://vk.com/artist/shortparis
• https://m.vk.com/artist/shortparis

Release:

• https://vk.com/music/album/-2000547103_15547103
• https://vk.com/artist/shortparis?z=audio_playlist-2000595165_15595165
• https://m.vk.com/music/album/-2000547103_15547103
• https://m.vk.com/audio?act=audio_playlist-2000201522_14201522

Recording:

• https://vk.com/audio-2001235442_109235442
• https://m.vk.com/audio-2001235442_109235442

Video:

• https://vk.com/artist/khleb?z=video-2000471995_63471995
• https://vk.com/video-2000471995_63471995
• https://m.vk.com/video-2000471995_63471995

Numeric artist IDs can be used in URLs but will redirect to the named one:
https://vk.com/artist/7883197366928333147 -> https://vk.com/artist/eighto_mtu0mtq3mjq4ma

Unless it's the mobile domain:
https://m.vk.com/artist/7883197366928333147

The Android app will also apparently prefer numeric IDs for artists when using the share function.

User uploads are still possible but can be somewhat distinguished:

https://vk.com/wall-71669171_6564?z=audio_playlist-71669171_85405578
https://m.vk.com/wall-71669171_6564?z=audio_playlist-71669171_85405578

https://vk.com/music/playlist/-71669171_85405578
https://m.vk.com/music/playlist/-71669171_85405578
https://m.vk.com/audio?act=audio_playlist-71669171_85405578

Apparently tracks from user playlists that are officially available link to VK Music. Otherwise they just link to the playlist:

https://vk.com/music/playlist/-10282765_85414456

Blocking links to potential user uploads is not advised. Apparently some artists make community posts for legitimate releases:
https://vk.com/wall-43343704_37079 via https://musicbrainz.org/release/ab366b9e-5560-4957-ac9b-45dc4f29c552

URLs can also have various parameters appended or an access hash in its path:

• https://musicbrainz.org/edit/90203593
• https://musicbrainz.org/edit/90203426
• "act=album" can also be added when clicking the album link on track pages
• ref