I support game producers being free to implement whatever tech they choose to work with. That said, I find it kind of stupid to side with NVIDIA promoting their exclusive DLSS over an open standard when the quality different is only noticeable in side-by-side comparisons.
The game has both DLSS and FSR? Great. The game only has FSR? Well, that's more inclusive than DLSS-only. Everybody benefits with open standards.