Msi pro z690
Msi pro z690
That board is more than enough for a heavily overclocked 12600k. The TUF board is similar, but your choice depends on personal preference.
The Msi model weighs around 80 pounds and comes in a bundle where you can purchase two for 460 pounds. You can also use your 3200mhz DDR4 RAM.
Indeed no problem. Most Z690 VRM's are incredibly well specced, as well as the Msi Pro.
It seems you're confirming your choice. I've seen the MSI Z690-A Pro work well in various configurations, offering solid performance for its cost.
For gaming at 1440p and streaming Netflix, I’d suggest upgrading your graphics card and ensuring your PC has enough RAM and a solid CPU. A decent gaming monitor and a reliable internet connection will also improve your experience.
The 12400 works just fine, and a 12600K remains a solid choice if you plan to push it further.