I converted to the more generic "file-and-folder" format, but the fidelity is not nearly as good as MAFF. For others who are in the same boat, I'm interested in your choice. I've considered going to WARC, as that is the standard that librarians have settled upon, but unless I'm finding the wrong resources, it basically relies upon me to set up my own Wayback Machine-like server to host the WARC files to display them. Not averse to that, especially with container tech these days, but want to find out what archival format will really last with support tooling that lasts as well.
I wish W3C would settle on a single archival format that all the browsers would adopt and interchange.
[1] https://addons.mozilla.org/en-US/firefox/addon/mozilla-archive-format/reviews/