We want to minimize the number of assemblers that we need to maintain and support in CentOS Stream. Assemblers are complex pieces of software that need updates to stay in sync with modern instruction set architectures and hardware errata. To this end we have been trying to remove the requirement for yasm to be needed in CentOS Stream. The package is marked as unwanted in the content resolver.

You can see the data here as part of the minimization efforts:
https://tiny.distro.builders/view-rpm--view-c10s--yasm.html

However, libvpx is using yasm as a BuildRequires, and so we should investigate using our assembler experience the removal of yam from libvpx since that would remove the last requirement on yasm in the entire distribution. This should be upstreamed into Fedora, and possibly upstream livpx.