I had the same sorts of issues the first time I rented a model 3 from hertz (when they had them).

For example, I didn't know how to lock the car. When I hit lock on the center console, then got out, it would unlock it. Finally had to google to figure out the two ways to lock the car. one was opening the door first, hitting lock, and then closing the door - it stayed locked. The other was to put the card key on the middle pillar.

Same issues charging. Called in and it turned out the j1772 adapter was in the trunk with the charging kit

after that it went smoother.

All the hotels I stayed at had charging.

Using tesla superchargers is great - always working, always plenty of stalls.

And the tesla would drive itself on the freeway - other cars wouldn't. Best.

You don't need to actively lock a Tesla, just walk away. It will lock itself as soon as it realizes you're no longer next to it.

Yes, this took some getting used to (what if it doesn't realize I'm gone?), but in several years of Tesla ownership it has failed to lock precisely zero times. And now I regularly forget to lock non-Tesla rentals.