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You could install the linux-lts
kernel alongside the one you have already installed to have the option to just boot into that one when a kernel update seems to be the problem.
Another thing would be to look into backup solutions that execute automatically when updating your system. Personally I have my system on BTRFS subvolumes and a package called snapper
to manage the snapshots (backups). Alternatively the package timeshift
gets mentioned a lot when discussing backup solutions.
Otherwise you did exactly what I have done to fix almost every issue I ever had. Downgrading the likely culprit and updating again a bit later.
I guess that’s a bit better than the original command in question. But from what I understand it’s still unnecessary and there is simply no need to force the refresh. A regular
pacman -Syu
is all you need and will refresh all databases that need it.