Yes, for now. At some point in the future I can see DJI forcing a current app version before allowing firmware updates. Should be a non-issue, though, as long as DJI Assistant 2 can do the firmware updates.
Sorry, I meant to quote the post above. My general experience with 4.1.22+ is just horrible over WiFi on any Android device. I've tried my Tab S3, Pixel XL, and Nexus 6P. Same crappy lag on all.
Because on Android, WiFi is the pits. Random video lag, sometimes lasting in excess of 10 seconds. Random disconnects. Poor video quality. These are non-issues with an OTG cable and version 4.1.15 of the Go4 app.
I'd say the MP for 4k video. And this https://www.amazon.com/dp/B01891TFXO/_encoding=UTF8?coliid=I3JPBCNDOJWQ1H&colid=FV1ULNBH4T0N&psc=0 if you have DJI Refresh and want to have a chance at recovering it if it goes in the drink.