Why cant i acces the eq on all my devices..and if not how can i choose on what device it will shown..?? (Samsung Galaxy 9, huawei,xbox one,msi laptop)
Sorry, but none of those have equalizers except for the Samsung Galaxy. You can't choose anything nor do anything to make it appear, but it might be a feature implemented in a future version of Spotify.
If you cannot wait for this feature, there is an unofficial addon called Equalify. It adds a 10 band equalizer to Spotify. You can find it here: