Pretty much every time there is a new year version upgrade for Adobe Photoshop, for example from 2021 to 2022, your third party plugins may go missing from the Filter drop down menu panel in Adobe Photoshop. The fix used to vary and some third party software still have different methods to resolve it. Here's what I tried for Microsoft Windows installations
Method 1: Make a shortcut to the relevant third party folder in the Photoshop Plugins folder.
For example, for the old Nik Collection Analog Effex Pro 2 which is stored in:
c:\Program Files\DxO\Nik Collection\Analog Efex Pro 2\Analog Efex Pro 2 (64-Bit)\
Drag that folder holding the right mouse button down to
c:\Program Files\Common Files\Adobe\Plug-Ins\CC\
and release the button, choosing Create Shortcut
- You have to do this separately for each Nik Collection Filter.
- I use 64 bit Photoshop
c:\Program Files\Common Files\Adobe\Plug-Ins\CC\I did this for my DxO ViewPoint 2 folder