Both..
Do you guys clean after every use ?
Grates I normally clean after every use.
Once all food comes off, turn heat up all the way for a few minutes so it burns whatever might still be there, then use grill brush to scrape everything off.
Chamber gets cleaned every few weeks (as I notice it’s filling up). The floor of my grill chamber slider right out the back, so I take off the grates, use the scraper / front of the brush to get everything off the edges into the middle, then dump everything into trash and wash the tray in sink before sliding back in.
Grease pan usually gets cleaned same time as the chamber.