*cracks knuckles*
from a eSports point of view, a mousemat is even more important than a gaming mouse. I've tried hard, semi-soft, soft, and full-rigid mats.
The harder the surface, the higher the slide factor. Think of this as a multiplier to your mouse sensitivity. You will have to change sensitivity to adjust to the higher or lower friction.
Now, hard mats and rigid mats (be they aluminium, hard plastic, glass) have much more speed - it's faster to move your mouse from A to B on the mat. Often this will translate to too much speed / too little friction, and you will have to use a far lower sensitivity.
semi-soft mats (cloth) have more friction but, due to this, more control. It's easier to make smaller adjustments. The issue is, humans have trouble using very little strength, while they have no problem using a lot of strength. Thus cloth mats are generally easier to play with, if you have decent aim but might need to make a small change, for example, when sniping. Tracking a target, moving the crosshair a few pixels is easier on semi-soft mats.
On the other hand, reflex aim is easier with harder surfaces; you will respond faster, but minute corrections require a lot of concentration and manual skill.
soft mats (sponge) are garbage and should not be used for gaming; the mouse sinks into the surface, and you need to change how much or how little pressure you put on it.
What i'm looking for in a cloth, semi-soft mat is: a tight weave made of very tiny fabrics, that feels synthetic, not cotton-like. Very thin and dense, with no sinking of the mouse feet regardless of pressure. If possible, stitched sides.
I've used with decent success the two different Goliathus, and then the somewhat softer MegamatXXL, but i am now with the very cheap yet excellent Silent Monsters XXL
https://www.amazon.co.uk/Silent-Monsters-Gaming-Office-Mouse/dp/B01FFFSORA?th=1 which for some reason has now more than doubled in price since last month.
I would recommend that you get a XXL sized mat as they are more stable, and they have enough surface to accommodate for super-low sensitivities.