Is there also a way to do this without using voice commands? If there is, then that's fine, the driver of the car has choices, options in how he or she can make specific adjustments.
Yes, you can control everything from the touch screen without using your voice. The temperature control is on bottom of the screen it shows degrees, when you touch it, a popup comes up with the AC/Heat controls.
I will admit isn't the best is for rear passengers, since they cannot use the screen, they can't control the flow of air to the back, or the rear 3 heated seats (even the center rear seat has its own heated seat). The S/X solve this with a touchscreen on the back of the center console.
Tesla's goal is to have you need to interact with the car as minimal as possible. Almost every setting in the car is saved to your profile. So, when you get in your car all settings (including autopilot, mirrors, seat, indicator options,..) go to your profile. If your phone is the one that opens the car (or set to take preference) everything automatically switches to your settings.
You do have to spend some time setting everything where you want it. But once it is set and saved to your profile, you don't actually have to mess with these settings. They even created a separate profile called "easy out" which its own profile that takes over when you park and unbuckle your belt. I have it set to put the steering wheel all the way in and up, it also brings the seat forward and seat back up to make it easier for me to get out around the B pillar (I sit next to the pillar).
I have not touched the temperature setting since I set it where I want it. It is automatic, just like every other car I have with automatic temperature control once I set my temperature, it is where I leave it winter and summer. Also, since it is an EV, with scheduled departure by GPS location, my car is at my desired temperature before I leave for work, and before I leave work to head home.
Telsa has also introduced Cloud Profiles. When I get a loaner, the service center automatically adds the loaner to my Tesla app. Once that happens, my profile (with my picture) shows up in the loaner, and all my settings magically show up in the loaner. The only things that don't carry over are related to being in the FSD beta program (since a lot of the loaners aren't in the beta, even if they have FSD).
I can admit things that Tesla did, that I would do differently, there is an issue with wiper speed. Tesla does not use water sensors on the windshield, it uses the camera. This is not the best user experience, and can make it wipe too fast, especially in the FSD Beta program's current version. You have to have wipers set to Auto for the current version of FSD Beta, it sometimes goes crazy fast. I just press the washer fluid sprayer button on the end of indicator arm, this makes it go back to normal. This is a flaw with the Beta software, and since I opt to be part of a Beta, it is to be expected that somethings will act like a Beta. But it would have been better if Tesla used traditional rain sensors in the windshield.