Solved: how to get photoshop to go back to default brushes... - Adobe Support Community - 5121844
Using Photoshop brushes
Clean Up Your Photoshop Brush Presets | Photoshop brushes, Photoshop, Photoshop program
Resetting Photoshop Brushes
Brush Settings Reset Themselves - Adobe Support Community - 10821715
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Restore old brush panel? - Adobe Support Community - 9549755
Along with new brush settings, Photoshop brushes can now be imported -Ver. 1.10.5- “New features of Clip Studio Paint #10” by ClipStudioOfficial - CLIP STUDIO TIPS
Tutorial. How to load new brushes in Adobe Photoshop.