Unfortunately,
a lot of people seem to have problems with the codes.
I just tested some and I need to say: Even I encountered problems.

For the Tapes make sure to unlock the tape room first: Go to the prize counter and hit the tape recorder placed on a shelf with an item until it falls down. Then enter the tape room by flipping the nightmare switch (the menu with the disturbing kids music). You should be able to see the glitched tape recorder to your right. Click on it and you will enter the tape room. Now press ESC, then Exit Level, then Yes and instantly hold ALT + SHIFT + X. Then go back in. Every tape should now be unlocked.

If anyone knows how to perform the cheat codes without problems, please let us know! Thanks :)

Just connect a keyboard to your console and make sure it is working.
E. g. typing stuff in the game store of your console.
Then just play the FNAF VR game as usual and press the correct combinations on your keyboard so it will trigger the cheats (didn't test it myself though, but you can give it a try).

Enter any game in the menu.
When you see the instructions just press Escape (ESC).
Hit EXIT LEVEL and hold these buttons in the loading sequence to unlock every level:
ALT + SHIFT + A

Every level should now be unlocked. Have fun!

Same procedure as before, but with different buttons:
Enter any game in the menu.
When you see the instructions just press Escape (ESC).
Hit EXIT LEVEL and hold these buttons in the loading sequence to unlock every level:
ALT + SHIFT + S

All 30 coins should now be obtained.

Enter the tape room in the menu.
Hold these buttons in the loading sequence to unlock every tape:
ALT + SHIFT + X

All tapes should now be available.
Warning: This will trigger the secret ending at one point.

Same procedure as before, but with different buttons:
Enter any game in the menu.
When you see the instructions just press Escape (ESC).
Hit EXIT LEVEL and hold these buttons in the loading sequence to unlock every prize:
ALT + SHIFT + C

Every prize at the prize counter should now be unlocked.
Warning: This will trigger a spoiler of ingame-content (the prizes).

Enter any game in the menu.
Hold these buttons during the game to skip it and obtain your prize:
ALT + SHIFT + U

Do this if you want to farm achievements or if you're not able to beat a certain game.
Warning: You might be skipping fun gameplay! :)

Do you still need some achievements? Like the plushtrap jumpscare prize?
Just skip games with the cheat code until you randomly trigger the rare jumpscare prize.

These cheat codes are working for me atm.
Date: 17th of January 2022

If the cheat codes aren't working, consider this:
You need to press and HOLD the buttons during a loading sequence.
Be quick and maybe change the order they are pressed.
But it might be enough to press them at the same time.
Just be quick and and HOLD them.
Especially in order to skip a game. It doesn't work right away,
but the screen will turn black after a few seconds and you'll win.

Credit goes to the reddit user u/Mrwinters666 for sharing these cheat codes.
Thanks dude!