They took the same route as Oracle, which honestly doesn't bode well for Almalinux, as I doubt users will have more confidence in Almalinux over Oracle Linux, especially when taking Oracles vast resources into account.
Cloudlinux too will start patching on their own, so Almalinux might be able to source patches from them.
Rocky seems to have some sort of partnership with SUSE, it's not clear yet what they are planning, it might become the community version of the upcoming SUSE distro but that doesn't make much sense when the openSUSE brand already exists.
Overall red hats decision made the RHEL-Like ecosystem much richer with many more active parties than before, though I think Oracle Linux is the one most enterprise software is going to support, maybe SUSEs fork too if that works out well enough.
Cloudlinux too will start patching on their own, so Almalinux might be able to source patches from them.
Rocky seems to have some sort of partnership with SUSE, it's not clear yet what they are planning, it might become the community version of the upcoming SUSE distro but that doesn't make much sense when the openSUSE brand already exists.
Overall red hats decision made the RHEL-Like ecosystem much richer with many more active parties than before, though I think Oracle Linux is the one most enterprise software is going to support, maybe SUSEs fork too if that works out well enough.