It’s a different culture between PCs and consoles. Consoles are standardized computers - they all have the same* hardware. Game developers can be confident in what functionality their games have access to, and so use the best they can.
PCs in comparison are wildly different from user to user due to being modular: you can pick from many parts to create a computer. As such, devs tend to focus on what most PC’s can do and make them optionally better if the PC has access to supporting hardware (e.g. RTX ray-tracing cores).
Besides, video games are drastically complex in comparison to static images 😛