Why is there a need for a 'Linux' storefront. The front-end should be web and OS neutral. Just sell, AND SUPPORT, for more than a week, something. Epic will spout shit and go on their merry way happily fsck'n customers, just as always.
When it comes to platforms like Steam or GOG Galaxy they're a lot more than storefronts. You can almost turn it off entirely in steam and it's almost hidden by default in GOG as I've never even gone into it by accident whilst randomly clicking on shit. It's the other functionality like patching, updating, verifying and managing local files that is quite difficult to do on the web.
When buying from Steam or GOG I always use the web from a different device because I tend to treat my gaming computer as suspect (hey I know what goes on, on there) and use a secure device I don't really use for much else than buying stuff.
I've never even used the Epic store as I don't play fortnite ergo trust them about as far as I can throw their HQ which must be located on the 8th circle of hell with the other thieves and fraudsters, especially after trying to bring console-like "exclusives" to PC but this is still GOOD NEWS! he shouts like an excited James May, it means they aren't able to ignore Linux any more as a games platform. I've built a new gaming PC a few months back and it's been fine on Linux. I've dual booted with Windows 11
but I've only booted into that twice in 3 months, the first time to see if it worked and the second time to see if the same drive was missing (turned out the power had come out of the back of the drive) and the second time I realised I hadn't even installed the graphics drivers (still haven't). Linux is more than ready for gaming.