Since the most recent software update, my device has gotten very hot through normal multimedia (streaming/games) usage. I also noticed very frequent "pauses" or "attempting to reconnect" type scenarios in streaming services and online games.
I've started paying more attention to the notification bar when these disconnects occur, and see that 1) my WiFi drops, 2) LTE goes from active to disabled (empty triangle), 3) LTE goes from empty triangle to triangle with an X, 4) LTE re-activates (filled triangle with 4G/LTE text next to it), and 5) WiFi reconnects.
This happens frequently during active use, and the device gets extremely hot.
Build 10.0.4 GM31CB
5/1/2020 Google play system update
4/1/2020 security patch level.