Hi,
I tell you my story. Maybe help. I had noise from the rear wheel on passenger side. Usually when was very hot was louder. Maybe because of hot, maybe because opened window 😉 I went to my car mechanic. He change rear brake pads and disc. Everything was fine for about a year. This year I had this same noise. Noise from the rear wheel on passenger side. I went to this same car mechanic. He checked pads and disc - everything fine. But he had an idea. I'm not a car mechanic and maybe my description is not the best. He clean and put grease on places where the clamps hold brake pads. When you press brake pedal - brake pads move. He put grease "on moving" places as well. DON'T PUT grease on brake pads from brake disc side .OEM Greases for brake system components - for calipers and pads: TOYOTA 08887-80609; And the noise disappeared. Maybe not completely but now I have a pleasure to drive.
Car mechanic said - don't buy genuine brake disc and pads from Toyota. There are not "quiet" any more.