[Brightcolours]

Most of these new Samyang primes are exactly what I'm looking for: compact, affordable et good enough optically.
I wonder why they don't release them for L-mount? The mount is open so it should be fairly easy to do.

You can also wonder why not RF-mount or Z-mount. Those at least sell a few.

both RF and Z mounts are closed and thus undocumented. Consequently, Samyang would have to reverse engineer the lens <-> camera protocol and hope that Canon or Nikon won't sneakily decide to change the protocol to prevent 3rd party lenses from working.
This is why an open mount such as the L mount or Sony FE makes much more sense for 3rd party manufacturers and customers.

There still are very few L-mount shooters. And I guess the Samyang RF lenses are fake news, then.. I'll have to notify Samyang of the fact that their RF lenses don't exist.... ;-)