Only works on Android though because Apple deems this type of non-Apple store a threat to their profits. Fortunately there are plenty of Android devices to be had on the market which can run a free AOSP-derived distribution like LineageOS. You'll get OTA updates until the cows come home or the developers move to another device, whichever comes first. The Galaxy SIII I'm using as a "dangerous work" phone - its screen got cracked when it fell of the barn roof for the second time while I was installing solar panels but it still works fine - still gets updates, it currently runs Android 11.
Spyware is much much less powerful on mobile than desktop. If you install malware on a desktop you are boned even without some OS exploit. On mobile there's still a lot an app can do, but it is far more constrained without some OS exploit.
But I also want a trustworthy place to get apps….