Heās not wrong - basically any ac to dc converter makes the issue go away, so my hubs are fine.
As far as whether itās fine with bulbs and plugs, I donāt know, but I do know it would be cheaper to replace them all when I leave then pay an electrican to fix someone elseās problem (and I did tell the landlord and heās shown no interest in fixing it himself)
As for why I donāt wanna use hue - firstly, Iād just prefer smart switches, and secondly, Hubitats native hue integration has a polling rate to the hue hub of one minute which isnāt ideal. But Iāll be using hue for now anyway
Also I currently have 30 odd bulbs, 6(?) plugs and a smart thermostat (Plus a bunch of battery devices that obviously arenāt affected)