I would like to know if there is a practical limit to Union remotes? Specifically I'm looking at Google Drive remotes.
For example, if I have 400 remotes under one union with an eprand policy, will this slow down or cause any problems?
On this setup, I also have another question, what happens if one remote becomes unaccessable (e.g. due to a 403 error), will that be ignored or will the request be retried with another remote?
And another question, can I have a union which is made up of sub unions? Will this cause issues?
For example, one union for drive accounts which is attached a union to replace mergerfs.
e.g. media union -> local media folder, union of drive remotes