Swupd checking returns ...experimental bundles found

I get the following results after running swupd:

  • How can one get the list of those experimental bundles…?
  • Is there any easy way to come back to a 100% safe sytem - without reinstalling C.L: again ?
  • Does any Command line software instalation means that one is instaling an experimental bundle ?
    …+ what does MoM stands for ?

$ swupd bundle-list
Error: Failed to retrieve 31290 MoM manifest
Warning: Could not determine which installed bundles are experimental