Immersion brewing (french press) is really forgiving. Just don't grind the coffee too fine and you're pretty much good.
I cleaned my french press by knocking out the grounds into the trash, quick rinse with water, then more water with a bit of dish soap and pump the plunger a bunch to froth the soap and clean the screen. Pour out, rinse until soap is gone, air dry. Every couple of weeks I'd do a deep clean by soaking the various parts in Cafiza and hot water. Not that bad imo.
I cleaned my french press by knocking out the grounds into the trash, quick rinse with water, then more water with a bit of dish soap and pump the plunger a bunch to froth the soap and clean the screen. Pour out, rinse until soap is gone, air dry. Every couple of weeks I'd do a deep clean by soaking the various parts in Cafiza and hot water. Not that bad imo.