[2022] crash on save (autosave or otherwise) - any progress?

I'm still experiencing this issue, essentially constantly... after around 20 minutes or so of play, either I try to save or the game chooses to do an autosave, and it just crashes to desktop... very frustrating...

I have tried all of the supposed solutions which have been listed elsewhere, including:
> updating Windows (I am Windows 10 Pro)
> updating graphics driver (GTX 1070ti)
> updating all other drivers
> running as Admin
> verify game files
> try lower graphics settings (though this has nothing to do with graphics, it is a game-save issue)
> re-install the game
> my system comfortably meets the game requirements in all areas, including plenty of disk space on the Gen4 m.2 SSD that I'm playing from
> remove peripherals (I'm not using a controller, just mouse and keyboard, so I don't think this is relevant)
> delete both cache directories
> I am playing the ACValhalla_Plus.exe version of the game, as Admin; this solved the hang-on-startup issue, but not this save-crash issue
> Exclude entire game directory from my anti-virus (Avast)

None of these has resolved this issue, nor even made it less common...
Is there ever going to be an actual fix to this issue?