Hi,
Using Finder with Photoshop not running:
can you go to the top menu commands Go> Go to folder...
In the dialog paste in this path "~/Library/Preferences/Adobe Photoshop 2022 Settings"
drag the highlighted folder to your desktop (so you can restore them back later)
launch Photoshop again
create a new default RGB 8bit document, add a new layer then add a brush stroke
double click on the layer to bring up the Layer Style dialog, and apply a Gradient Overlay
now in the same dialog, click on the top left Styles label to see any existing Styles
click on the New Style...button to save a new style
click on OK, and note if style appears
Is this working?
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