Can you say more about how you did that? I have some Logitech mice that are awful to use because of this. And they were extremely expensive. Had I known that after a year they'd turn into a sticky mess I'd have sent them back immediately (or never bought them)

I've used ispropyl alcohol on a few such devices. I don't know if it's as effective as acetone---it did take some rubbing---but I did manage to eventually get it off, so I know that it can be used as well.

EDIT: While I've run into devices that have seen a range of this, the worst was a Grundig G6 radio. Searching, at least according to this page, it looks like the manufacturer recommends "Purple Power":

https://swling.com/blog/2021/01/getting-the-grundig-g6-out-of-a-sticky-situation/

If you’ve been an SWLing Post reader for long, you’ve also no doubt read our numerous posts about cleaning off this mess. There are a number of solutions, but it seems the most positive long-term results by employing a de-greasing product called Purple Power (click here to read archived posts). Indeed, it’s the solution Eton Corporation recommends and the one I used to clean my Eton E1 XM.

I have not myself used the stuff, so I can't personally vouch for effectiveness.

Based on this, it sounds like the solvent that uses is diethylene glycol butyl ether.

EDIT2: Also on that site. Might be a good idea to look at what you're buying if you do try some:

https://swling.com/blog/2021/01/ron-notes-that-purple-power-is-not-the-same-product-or-formula-across-the-globe/

Ron notes that “Purple Power” is not the same product or formula across the globe

We’re shared a number of posts here about how well the product “Purple Power” cleans the sticky residue off of portable radios than once had a rubberized coating (the coating breaks down over time and becomes incredibly tacky).

Many thanks to SWLing Post contributor, RonF, who writes from Australia with this important note:

Tip for non-USonians: what’s sold as “Purple Power” (and “Simple Green”, and several other frequently-recommended cleaners for this sort of thing) are not necessarily the same products around the world.

For example, in the US “Purple Power” is an ethylene glycol based cleaner/degreaser; here in Aus, if you ask for “Purple Power” you’ll get a sodium hydroxide based degreaser.

One will clean the gunk off your radio; the other will clean the gunk and most of the labelling off…

The G900 series doesn't have that, or at least it didn't when I bought mine like 8-10 years ago.

I've had several MS mice, keyboards, and various electronics from many manufacturers that do that though. I hate it as well, and actively avoid buying things coated in it.

That said, sometimes you can melt it off with acetone. What you are left with depends on whatever it started as though.

I have a bad habit of washing my hands too much, so I never have this issue with anything like mice or controllers. :-P