Given how popular it is in modern console AAA gaming, which many people do play on PCs, one can reasonably expect that any studio desiring to target high contrast gaming — a valuable niche for stealth games, where a bright torch should absolutely stand out brightly against the darkest shadows, as well as star exploration and anything with landscapes or specular highlights — would like to be targeting HDR on PC, if only to simplify their cross-platform build and test pipelines, but cannot due to platform barriers that don’t exist for consoles.
>Given how popular it is in modern console AAA gaming
What are some of the games where it's necessary?
You’ll have to do that research yourself, apologies; I haven’t looked for that data and so I don’t have it available for you.