On my iPhone, the menu is at the side, and to open it you have to slide your finger. But I see my friend has the menu with all its parts on the bottom of the screen, and that makes it accessible from anywhere, easier to use and simpler. We both have the same iPhone with the same iOS version and the same Spotify version. I have tried deleting it and redownloading it but it doesn't change. I want to know if it is possible to change this. Thank you.
Unfortunately there is no way to get the old menu back.
The new bottom menu is here to stay.
According to Spotify there were great results from beta testing it:
"The company tested the tab bar on iOS to see how it impacted user engagement. It found that users with the tab bar ended up clicking 9% more in general and 30% more on actual menu items. The tests also revealed that reducing the number of options in the tab bar to five increased the reach of Spotify's programmed content, the company says."