VW has no recourse over who plugs in OBDII dongle - independent service stations use them as do millions of owners. OBD 11 is good, too, but costs more and, in my experience, is much slower to connect, though is a more versatile tool. Also, with a “standard” dongle, ABRP can show live SoC through CarPlay.
I never notice amber on the charge port LED.
2017 e-Golf LE, Multi Coat White with Black Vegan Leather interior, purchased in early 2018
2015 e-Golf SEL leased for three years, returned in early 2018