I still use on axios over fetch. Mainly because fetch doesn't have abort function. axios implements cancelable promise proposal that didn't go though TC39
Tho it has been a while since I checked TC39 status on fetch
Fetch is a Web API, not an ECMAScript language feature, so TC39 doesn’t have much to do with it. They do do Promises though and Cancellation is a Stage 1 proposal [0], so it’s more than a year away from standardization at best.
WHATWG handles Fetch and their spec[1] was updated seven days ago.
Tho it has been a while since I checked TC39 status on fetch