I had horrible luck with Tab E, even with P3A using Go 3. Ended up getting Tab S3 with a sigh of relief.
Tab E won't connect to remote without rebooting after everything else is connected. Sometimes I could get the E to connect if I rebooted the RC several times. Something Samsung puts on the E intercepts and blocks the USB communication before the app can grab it.
At least when I only had P3 and Go3 installed, I could set "always use this app". But when I got the M2 and needed Go 4 for that and also fly the P3 with Go 3, "always use" was no longer an option.