Why is gears of war ultimate edition still being sold with no refund option if its a broken mess?

just bought it on sale. was stoked to replay one of my favorite campaigns only to find it runs terribly even at the lowest setting. after reading some forums it seems there are countless pc players experiencing the same problems. on top of that it seems like most of the xbox mods like pointing the finger to the user and not the developers so its unlikely there will ever be a fix to this broken mess of a classic. would really like to get my $20 back considering that my video card is a gtx 1080 which is above the minimum requirements to run the gameā€¦
honestly seems borderline illegal to still have this for sale

You should be able to contact microsoft for a refund, but it does suck the game doesnt work on PC.