1. Its rebuilt from the ground up.
2. Im sure they will have something to show off soon enough.

Just use the built in cap.

Set r_vsync = 0 and sys_maxfps = X

Increase fan speed. CE is a more demanding engine.

Well i can confirm alpha works. How does the opacity mask look like?

You can use Vectorian Giotto and Flash Develop but it's far from an ideal solution, Crytek knows this and have a new ingame UI Pipeline in the works. Not sure on when it will be available. Certainly hoping they make it in time with 5.7.

CE 5 does not require a permanent internet connection, only when obviously updating the engine to a newer build. Also if you don't like the CRYENGINE Launcher popping up every time the Editor starts you can disable it by putting ed_UseDevManager = 0 in editor.cfg located where you installed the Engi...

First of all you are running an old engine build. Try 5.6.5, DX12 should work fine for the game launcher, with the upcoming 5.7 we will have full DX12 and Vulkan support in both the Editor and Game Launcher. The current implementation in 5.6 is experimental / beta and it's missing several features.

Ok but this is a showcase gallery but you didn't provide a showcase for your game. Add some images perhaps?

Did you adjust the slider under Opacity in material editor?

Does your albedo / diffuse contain an Alpha channel with an Opacity mask in it? If not, why not?