Sharpening in a game with no compatible Depth info

I'm running UE4 (4.26, scen color format is  PF_FloatRGB 32Bit) game and it seems like some depth information is not compatible either with Reshade or shaders, not sure (SMAA marked yellow and complains about texture color) and Marty's qUINT Sharp does not work in Depth mode.

What would be next best sharpening filter that is not using Depth?

I love the look of SurfaceBlur.fx by Ioxa when using it with negative strength values. Just by using the default settings with -1.0 on strength makes very sharp image without causing any annoying haloing.

I'm really wondering why no-one ever mentions that when talking about sharpening shaders.

qUINT sharp doesn't need depth info -- you can't really tell the difference except in screenshots and looking VERY closely.

There's rarely a game where the depth info is displayed in a way that's actually useful to SMAA.

Unless you can somehow use depth info to detect text to use it as a mask (requires custom shader modifications) I wouldn't worry about depth info -- except for shaders that actually requires depth info e.g. ambient occlusion or depth of field.