And in those 5e games, is it your experience that AHW is somehow broken, or otherwise a bad spell?
No. My experience has been that it is not broken, or bad in any way.
And in those games, has meteor swarm turned out to be a "normal" spell, or one that was overpowered in your actual gameplay 5e experiences?
That's the trickier point.
Meteor swarm is overpowered. It's intentionally at more than double the damage suggested for 9th level spells in the DMG - but that's not the only part of the story, there is also what other spells exist at that spell level which the spell must appear at least somewhat worth choosing in comparison.
That point is one I am sure that CapnZapp will not agree with me on, since I find horrid wilting to be comparable in benefit to other spells of its same level, and all of those spells certainly over-shadowed as they should be by the spells of meteor swarm's level.
Yet, if meteor swarm weren't as damaging as it currently is, it might not appear to be a worthy choice next to
wish,
foresight, and even
time stop (assuming on that last one that the player of the character using it is talented at finding the opportune moments to use it and choosing the opportune use of the actions granted by it).
I think, however, that the design of 9th level spells was deliberate in being over-the-top, much like the other features in the game which are gained only at the last few levels, the majority of which are also over-the-top - making the "end game" levels deliberately into a much higher power level across the board for reasons I might sum up as "game is basically over, so why not get a little wild with it?"