My PS5 has worked perfectly for years. EXCEPT when my son streams anything on the Roku Premiere in another room. As soon as the Roku turns on, I experience major lag and connectivity issues with my PS5 controller. The Roku is connected by a HDMI to a Samsung LCD. Nothing special.
When I ask him to turn it off, he simply presses the home button on the Roku remote and turns off the TV. The PS5 issue is immediately fixed.
These are 2 different TVs that are not related or connected to each other at all. TVs in adjacent rooms.