Good solution for high pile carpet?

Then I am not really sure, maybe get a lighter chair, low neck with thin legs but flat feet. That should make moving it easier without damaging the carpet too much. Either way, imo, there's no good way to protect the carpet. High pile carpet always get dented easy, Softer once just take a little longer, but are a better option if thing on top of them keep moving a lot, as they may jump right back up.

I would personally use something at least 8 to 10mm. Large enough sheet that you can move around without running of the edge. Can't see it moving much, but you could add ya own spikes to the corners if you wanted. Don't use acrylic, it would probably crack.

I think, the only real solution would be either change the wheels to somewhat bigger so they can easily roll over the pile (like 10-12 cm) or change the carpet. IMO any mat won't be very reliable. But I'm merely theoretical here, unfortunately.

but this i show u not good because is plain,if you can find something like this but that is also same lego then is better because can put one up to another or combine weight\height,modular

FYI - your wheels would get stuck where the pieces connect. And it probably would rip that material super quick. That type of thing is good to protect kids' heads but not for a chair to roll on.

It's been solid and no dents. The only imperfection I've noticed is a minor scratch and I'm not even sure what caused that. I've been working from home since I bought it and that desk also has my gaming pc, so it gets quite a bit of use. The only negative would be that I wish it was a few inches bigger. I have a corner desk (work pc one side, gaming pc other) so I tend to swivel around and can sometimes get a wheel to slide off if I move too far.

I bought something similar from IKEA - https://www.ikea.lv/lv/rooms/darbistaba/piederumi-birojam/piederumi-birojam/kolon-gridas-aizsargs-art-44881100

I got it because I have wood floors as not to scratch them. But I suppose this would work very well on top of carpet as well. The link is in Latvian but you could probably search for the product name in your local IKEA if you have it.

Its very durable. But yeah - who knows how well it would sit on high pile carpet though. Only way would be to try. I had one in my previous flat.... I just removed it from the place I had my office space.

Yeah its rubbery on the bottom and dont move at all you need to pick it up to move it .