The older versions of IE back in the Windows 9X era would essentially turn into Windows Explorer if you put a local file path into them. I remember using this exploit back in the day on our school computers that ran a locked down version of Windows where you couldn't browse anything in Windows Explorer beyond your personal network folder. I found that by typing C:/ into the IE address bar it would turn IE into Windows Explorer mode and from there I had full access to the C drive and could even open up the folder tree sidebar thing and browse the local network, finding all sorts of folders that I wasn't supposed to be able to access.

Older iPhones will probably be sought out by retro collectors in the future similar to how old game consoles and computers are collectible now. I remember when you couldn't give away old DOS PCs and CRT monitors and now they are sought after by retro PC collectors. I could see the early skeuomorphic versions of iOS being sought after by collectors in the future. They'll want to sideload old apps and tinker around with the OS which is a lot easier to do with a jailbreak.

I used RIF for over a decade, it did everything I wanted so I never sought out an alternative.

For Android I've been using this app for years that pulls its data from NOAA
https://play.google.com/store/apps/details?id=pandamonium.noaaweather

I feel like they will ban it anyways before their IPO along with any other communities they deem "controversial"