Do "Cooling Plates" actually assist?

Heyo, I'm not the most important cellular gamer, largely simply enjoying limbus firm, or watching youtube, however on account of my space having loads of dangerous knowledge spots, this quickly heats up my telephone, inflicting lag and likewise making the display screen often unresponsive/glltchy, generally even going as much as 60°C+ in line with DevCheck.

So, again to my level, do these cooling plates actually assist? I do know cooling followers do, however I actually don't need a massive, cumbersome fan on the again of my telephone, id a lot moderately have a extra transportable plate that would slot in my telephone case.

I exploit a Samsung Notice 10 Lite, any strategies/suggestions are appreciated!

(the picture is an instance)