Which model? My LG C2 had none of these issues. It also hasn’t been connected to Wi-Fi in a year, so maybe it’s an issue with the latest software.
Did a coulpe of updates several years ago, but I got worried it woud install an update with ads, so I turned off automatic updates.
But it kept pestering me, so I unplugged the Ethernet cable and bought a Fire Stick.
Now I'm getting automatic trailers on the Fire Stick when it boots up.