No, @philm built the 5.24.7 packages on GitHub and offered the .zip file for download, and then you have to download it, set up a local repository, use repo-add and point /etc/pacman.conf to the directory with the unpacked .zip.
However, as @philm pointed out, when the next update to the KDE Frameworks comes around, the 5.24.7 packages will need to be rebuilt against that, and especially so kwin. So unless someone is willing to maintain the LTS packages, we’ll eventually have to migrate to 5.26.
And that’s why I am now inquiring as to the usability of 5.26. Personally, I don’t have multiple monitors, nor Nvidia hardware, but the crashing — with data loss — and the black screen were the showstoppers in 5.25, and if those are not fixed in 5.26, then 5.26 is no good.