Vector portable chargers run ok at full amps from MSW inverters. So that wave form doesn't seem to bother them, at least not that you can notice.
I see from posts in this thread that we have to be careful in not equating poor wave form with MSW. Poor wave form can also mean spikes or whatever.
The Vectors do run at lower amps when on clean 120v, but at "low voltage" from long extension cord or from just having too many Vectors on one 15a circuit. EG, the 40amper will run at 39.x amps instead of the usual 40.4a
Same thing with the 7355 converter. Lower 120v input means fewer then normal DC amps out. Converters mostly have specs that say they need at least 105v.
One of the selling features in the Vector ads is that they will "make up" for low voltage input. I guess that means they will still run, but they sure don't put out full amps then.
However seeing 80 instead of 100 amps is huge compared with those examples.
Ten years or so ago, Xantrex had warnings in their blurb about Truecharge chargers (be similar to the charger in a Prosine 2.0) not running well on some generators due to wave form issues.
