Riding electric vehicles in the rain, what are your experiences?

I can't speak to your ride, but I have no hesitation riding my ebike in the rain. I've got a Shimano mid drive designed for EMTBs, if it can handle muddy MTB trails a little rain isn't going to hurt it

Most ebikes have decently water-resistant controller housings. I'd avoid a serious downpour if possible, but it probably wouldn't be the end of the world if you get caught in one, and light rain is no problem at all.

Fuck it, just ride!

If the product recommendations don't specify, it's usually best to avoid. My ebike is fine to ride in the rain but my electric longboard isn't, it's just that the important components are in different places and their capabilities are unique to the models. Even then, I try to saran-wrap anything vital (like buttons, screen and connections) before I ride in the rain just to be safe.

I have a radwagon from radpower and it's gotten me through many wild downpours with no issues. Other than me forgetting my rain jacket sometimes :(

While I don't enjoy it, I've been caught in heavier rain a few times while on my Inmotion V11 EUC and it handled it like a champ.

I have the same bike and just ride it but I do throw a poncho over it when I park. I think just avoid torrential downpours and you'll be fine.

For what it's worth, the 20X4" 15 psi tires seem to grip very well in wet conditions: There's a pretty solid contact patch and I haven't slipped once so far.