I agree 100%, a solid modern browser is key for the longlivety of a mobile phone. I used BB10 until very recently, like 2023. What forced me to change was the speed of the CPU and the browser couldn’t keep up with modern home pages.
If a phone can browse the internet like a normal PC, then it is surely useful regardless of app support.
Android app support is not that important for me as I usually always use the web service if there is any before the app. For Android apps I have an Android burner phone if necessary. Android app support is nice but not a game changer for me.