Is it normal for cats to be less active somedays?

Hey everyone!

So let's get straight to the point, he drinks and eats well, responds to treats, chases the other cat, doesn't show the pain signs in his face, is not weak nor any change in breathing and no Litter problem

He is just more sleepy and spends less time doing zoomies

Should i be concerned? Is it normal?

I can say he gets bored easily and currently I'm having a difficult time finding a toy that entertains him (both solo and interactive)