Do "Cooling Plates" actually assist?

Heyo, I'm not the most important cell gamer, principally simply taking part in limbus firm, or watching youtube, however on account of my space having plenty of dangerous knowledge spots, this quickly heats up my telephone, inflicting lag and likewise making the display often unresponsive/glltchy, generally even going as much as 60°C+ in response to 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 huge, cumbersome fan on the again of my telephone, id a lot somewhat have a extra moveable plate that would slot in my telephone case.

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

(the picture is an instance)