When we have a rental car we always drive to every park that is not accessible to us via monorail or skyliner. Parking at the TTC is no problem for us, but to each his own.
We avoid buses whenever we can- their timing is so irregular and if someone in a
scooter needs to get on, that really slows everything down. We always used to rely on WDW transportation, supplemented by the occasional taxi or Minnie Van, until Covid happened. Since then we've used rental cars and now I doubt I'd ever go back to WDW without a car, especially since Magical Express has backed off managing your luggage. Being able to walk out of a park and simply hop into the car, with no wait for a bus, is something we've definitely gotten used to in the two trips we've taken since reopening.
One advantage of driving is that you don't have to wear a mask while you drive. You will always have to stay masked while on WDW transportation. And obviously when in your own car, you won't be in an enclosed space with strangers, so it's safer, too.