Unable to answer because the timelines remain nebulous and I refuse to use the timeline retcon explanation in those comic books you are going to have to harass Prime Clone for that lol
Mad Max is more “legend” than strict blocks of time.
As mentioned a coupla pages back, the modern Max movies are like a soft reboot. Miller confirms they're part of the same timeline as the OT but he's taken liberties. And FR does happen after BT.
As for my take on Furiosa, I know my taste is questionable (being a fan of the PT, Snyderverse, Webbverse, STID, Matrix Reloaded etc.) but... I liked it a lot. It's more story and character-driven than FR (though I probably still give FR the edge for its Max factor, and more epic-scale action sequences).
It also expands the lore and world-building of the Wasteland.
And yes, there's more of a RW vibe (there's even asphalt at one point!) with maybe a dash of BT.
I was on the lookout for CGI but didn't see anything obvious enough to take me out of the film.
It dovetails seamlessly into FR, and if The Wasteland ever gets made I can see it intersecting nicely with Furiosa.
The exact MM timeline is still elusive but I'm nutting it out.
A small point, I was actually hoping Imperator Furiosa was a name given to her by Immortan Joe (a la Darth Vader). But nope, she was always Furiosa.
Turns out the 15 years is the time between her leaving the Green Place and becoming Imperator. So we need to know how much longer she's at the Citadel before FR (possibly only a couple more years - or even six months). It may be referenced at the end of the movie, but if it was I missed it.