I have the same problem with Peacock. It'll work for a while then all of a sudden the picture freezes and I may lose sound or the sound may be there but the picture is frozen. All this BS of deleting the channel, installing it, clearing caches etc. It's a waste of time.. It happens almost immediately after I do all that.
You know Roku and all these other companies are BS. There is no direct help from these companies. Their advice is go to the community. They're just evading issues and don't wanna deal with these problems and hiring real support people.
The peacock channel freezing just started right after the latest Roku update in October 2022. I've never had any issues with any of the other apps on my Roku's, just Peacock.
Does the issue only occur on Peacock or across other channels installed on your Roku device?
Have you tried removing the affected channel Peacock and then re-install again? If not, we suggest starting there. In some cases, removing the affected channel and then re-installing it may help. Restart your device before re-adding the channel back in to ensure the process is successful. We recommend doing this through the Settings menu by navigating to Settings > System > Power (If there is no Power submenu, proceed to the next step.) > System restart.