Hi Monday,
I have a suggestion to the use of “Manage boards without owners” since, this option is limited to only give access to ALL boards without an owner, private and shareable, making it a big mess to clean up after.
If you only want 1 person to get ownership of 1-3 boards, it would be ideal to get a search function for this future, so we can select which user to get owner access to specific boards, instead of only having the option to give owner rights to all boards without an owner. 