Topaz and Photoshop question

I have the latest version of Photoshop (22.0.1), Lightroom Classic 10.0. I’m on a new computer (iMac Catalina 10.15.7), and just downloaded and installed Gigapixel, Sharpen, Adjust, Mask, Denoise.

In Photoshop, I can find Gigapixel, but under the Filter menu I only see Adjust AI. Why don’t sharpen, mask and Denoise show up here?

In lightroom I was able to setup Studio 2 as the external editor - is that the best way to access the applications in Lightroom?

Are there any user guides for the products? A quick look on the website and I find many back level pages.