I think a lot is being made of this headline, honestly. Indiana Jones did the same thing using the same engine... and runs well on a broad variety of hardware, including AMD cards with no dedicated RT accelerators. And that's not an experience designed with high framerate competitive action in mind.

I also literally booted Doom Eternal for the first time in a while today, enabled raytracing, and played at 120FPS with 4K native on a 7900XTX, all settings on High. Id knows how to frigging optimize a title, and you can bet their raytracing implementation will be substantially better optimized than the RT we're used to seeing. So long as you don't run it with Path Tracing (a future forward feature, like Crysis back in the day), I fully expect you'll still be able to get high framerates and incredible visuals.

Wait for the Digital Foundry tests before buying if you're uncertain, absolutely, but I really don't see any reason to be concerned with the way idTech 8 has been shaping up.

However, the reality is that most gamers are now using gear that has some ray-tracing capability.

Sure, plenty, and I'm still going to hard-pass any idiot game that forces raytracing or upscaling. Find something actually useful to do with the power available, instead of something that worthless and computationally wasteful, or don't and run at lower power. That's more valuable than raytracing.