embeded playlist isn't playing full songs on mobile only previews

[watermelononsunday]

My Question or Issue

I am trying to add a playlist using the embed way to my website. but when I do so, it only plays previews of a song and the last song is the one that is automatically played when I press play. also, it doesn't auto-play the next songs.

this is my original embed code from spotify: <iframe style="border-radius:12px" src="https://open.spotify.com/embed/playlist/5ebTgsUwdrxIrfp75KtwxI?utm_source=generator&theme=0" width="100%" height="152" frameBorder="0" allowfullscreen="" allow="autoplay; clipboard-write; encrypted-media; fullscreen; picture-in-picture" loading="lazy"></iframe> 

Here is the edited code so that it can work on all browsers also I moved the inline CSS to my external CSS: 

<iframe src="https://open.spotify.com/embed/playlist/5ebTgsUwdrxIrfp75KtwxI?utm_source=generator&theme=0" frameborder="0" allowfullscreen allow="encrypted-media" title="Spotify Playlist"></iframe>