Roku's version of this is its "Bandwidth Saver" that pops up after 4 hours with no user input.
You can turn this feature on and off via Settings > Network > Bandwidth saver
Note that some individual channels may have a similar feature.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Ultra 4850 | Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X