There are ways of reverting to a previous version of the drivers. For example, you can use the downgrade utility if you have the previous version in your package cache.
Or you can uninstall the packages providing the 550 version and directly install the previous version from the AUR.
Or you can try using nvidia-all to manage the driver versions.
Other possibilities to consider would be trying different kernels (for example the LTS kernel) which may produce a different result, or try uninstalling the Nvidia drivers altogether and use the Nouveau driver instead if your use case is not overly demanding.
I have no idea, I do not follow Nvidia development very closely. I don’t own any Nvidia hardware, and I probably never will because it seems stressful to deal with.