First welcome to home automation and welcome to the forum!
Absolutely! With Hubitat you'll find there are often 47 ways to do something and no way is necessarily wrong. You can use groups, or you can use scenes, or you can control the bulbs individually, or you can use the room lighting app that combines a lot of these functions into one pretty sophisticated automation tool. I usually use scenes if I want various devices to be set different ways, like 5 lights on, 3 lights off, 4 dimmed to 50%. For simple on/off/dim together a group is likely easier, or you can use the "room" functionality within the room lighting app if your sets of lights conveniently follow a room pattern.
With switches as with everything else Hubitat related you have lots of options. My personal preference is Lutron Caseta's line of switches, dimmers, fan controllers, and so forth. I like them because they are rock solid reliable and because they have many models that don't require a neutral wire at the switch box. For those of us blessed with older homes that's a huge advantage. They do require a separate hub (their PRO series hub) but it integrates well with Hubitat and works flawlessly. They are also a bit on the expensive side. I have close to 40 of them and they're just great. Their Pico remotes are really handy for 3-way installations or adding an extra switch just because. I don't use their motion detectors, though - they can't be controlled independently and I like having the flexibility to do more with them
If you want to go another direction you can get either Zigbee or Z-Wave switches from a variety of manufacturers. Zooz, GE/Jabsco, Inovelli, and several other manufacturers make solid products. If you choose z-wave or zigbee you'll want to plan out your network a bit before hopping right in. Here are two great links:
https://docs2.hubitat.com/how-to/build-a-solid-zigbee-mesh
https://docs.hubitat.com/index.php?title=How_to_Build_a_Solid_Z-Wave_Mesh
And though you don't need to, I'd start with devices that Hubitat has tested for compatibility. That list can be found here:
And last but not least my co-conspirator @rlithgow1 has put together a thread that has lots of good info for people just starting their home automation journey or who are coming from another platform:
There are lots of great folk here who have boatloads of knowledge and are happy to share experiences and best practices so don't hesitate to reach out. We all started where you are at some point.
