SteelSeries - Arctis Nova 5 Wireless Over-the-Ear Gaming Headset with 2.4GHz/Bluetooth for PC, PS5/PS4, and Switch/Switch 2 - Black

It is required to be able to use it without bluetooth. But if you plan to only use it with Bluetooth, you'll be fine. As an alternative to the dongle, you can use the cords that come with it, but it kinda defeats the purpose of a wireless headset.

Yeah it works perfect. I was using AirPods before I got this and I would only get audio through the right channel. Now all my teams calls are through both channels.

for being a headset mic, it sounds clean, clear, and non walkie talkie like lol. I am satisfied with it, and while gaming, alot of friends say it sounds crispy

Yes. They have a built-in Bluetooth mode that works very nicely. You can manually control the volume of the sound coming out and interact with the phone with the buttons on the headset. Honestly, these are a solid buy.

Great question! This version would not be compatible, but the Xbox version would compatible with all platforms