Hello, This is very troublesome after working in Photoshop for some 20 years. I will show a preview and hopefully Photoshop will give us this control back. I have seen things like this in the past and they seem to love changing things just to change them back if there is enough of an outcry. It seems in Photoshop 2021 they've taken away the ability to control the brush feather while working, holding the control and option keys to feather and size of the brush. Now it controls the size and OPACITY of the brush. This is ridiculous since it is very easy to control the opacity with the number keys. Also if you are used to this workflow you can easily change the opacity by mistake. You can't even see a preview of the brush edge anymore. Maybe I'm missing something, and someone can set me straight. This is super frustrating and I've spent too much time trying things, but of course that's how Adobe likes to roll.