Timemore Crystal Eye plastic dripper 01 clear

At what temperature do you let your favourite coffee bloom in the dripper? 80 °C? 90 °C? 94 °C? What if I told you: "try it with water as hot as the tap," or "try throwing a few ice cubes on the dripper." Yes, today it's about cold brew and how it affects the final taste of the coffee.

Same recipe and coffee and 4 different drippers of top coffee brands - Hario, Timemore, Origami. How do they differ in preparation and taste? And above all, which makes the best drip coffee?