I feel that the mobile world is ripe for disruption. There has not been excitement for new devices in a while from me and my friends who are all into tech. I remember 00s and early 10s where we used to discuss new devices all the time.
Most of us are STUCK with Apple and Google because they have both built walled gardens. It is not just the apps, it is also moving away from open standards, moving away from even files. e.g., 10 years ago mp4 files used to hold all the metadata related to a TV Show/Movie so if you put that into a device (iTunes for example) it'll have all the metadata, now this info is in a separate database. SMS for all it's flaws was open, now google wants us to believe RCS is also open (LOL).
This has led to a basic degradation in all the basics, echoing your example that it is impossible to find a decent music app.
Even apples own music has has ACTIVELY DEGRADED. Bottom bar of apple music app was "Albums", "Songs", "Artists", and "Playlists" and YOU COULD CHANGE THE BOTTOM BAR. Now it is literally "Home" == Ads, "Browse" == Ads (pls buy apple music), "Search" == Ads. and LITERALLY only 1 page called "Library" where you can access your own purchased library. Same happened with apple books.
Android has seen similar shitty stuff, I remember being excited about actually FUN android games, tiny thief, vector, cut the rope, where is my water, etc. Now it is all ads, paywall nonsense.
Not to mention the Today page of the Playstore ACTUALLY USED TO BE USEFULL for highlighting some apps. And is not LITERALLY ONLY F***** ADS.
I feel/hope/pray that we have a SteveJobs 2007 type iPhone event around the corner, because everyone is ready for it.