Honestly, most people should buy the Apple TV 4K (2021), at least on Black Friday. We've seen it as low as $79 — $100 off its MSRP.
If you want the fastest Apple TV 4K, or care about the Matter smart home standard, there's a case to be made for the Apple TV 4K (2022), though it costs $70 more for the model with the Thread modem for Matter, and an Ethernet port for more-stable streaming.