The use of Sherpas to open routes is restricted to a relatively small number of the most popular and lucrative routes, usually in Nepal. Most "proper" climbers look down on any notion of routes bring prepared - fixed equipment, ladders, etc.
There are a good number of expeditions of a higher standard of mountain ethics which still happen and still many new routes to claim in the Himalayas. But these are far removed from the world of the stereotype of the type of person who wants to climb Everest who get all the media attention - look up Nick Cienski for a good example of virtue signalling, ego and narcism.
If you're interested, The Alpine Journal is an excellent resource for capturing all the lesser known alpinists doing amazing things with little to no media attention and a tiny budget. Among the low key mountaineers the is even a bit of a culture of not reporting first ascents, due to the bureaucratic nature of permits - allowed to climb one peak, but not one next door. Those in the know, who are looking for a more pure climbing experience, prefer India and Pakistan where permits are easier to obtain, there are virtually no climbers and hundreds of new routes to do in unspoilt valleys.