How to apply Liquid Metal on Sapphire RX590 SE OC

I have a really old Sapphire RX590 Special Edition that I used for gaming It's a decent card, and it can certainly keep up with my needs. However, I only replaced the thermal paste and pads a few year ago, and now I think they became dry because the temps under load is waaaay too high, it takes linger to cool after load and idle temp is also high. Even after adjusting the fan curves the temperature still stayed high. I have some Liquid Metal left after I applied it to my CPU and I was wondering whether I can apply it to my RX590 as well. I see a lot of resistors (or whatever they're called) around the die, and I was concerned that the Liquid Metal will leak out sideways and fry my card.

So, my question is: How can I apply Liquid Metal to my RX590 without possibly frying it?? Would surface tension keep the Liquid Metal from spilling out from the sides or do I need some kind of foam to keep it in place, like the PS5? If it won't work then I guess I'll go back using thermal paste.