How can you make a screen space widget that can be occluded by objects or a world space widget that doesn't dissolve into soup whenever you move?

Development Programming & Scripting Blueprint
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1

I’ll be honest, world space widgets look atrocious. Even with anti aliasing set to FXAA instead of TAA they look terrible. I want nameplates over the heads of characters in my game, but I want the clarity of screen space, not being affected by movement or AA, with the occlusion ability of world space, so if the character is on the other side of a wall I can’t see their nameplate anymore.

I know you can do a line trace and hide/fade it that way but, it’s not quite what I’m looking for. If anything I just wish I could have a world space widget that has absolutely 0 post processing on it at all. I want it to stay sharp just like screen space does. I just want it to not look like absolute ■■■.

Is this achievable?

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Necroing this because I would also like an answer as to how to make a world space widget not undergo any post processing. An additional question I have: Many people suggest making a worldspace widget that scales with distance and rotates to face the camera on tick, but is this a performant solution, will having many such nameplates updating on tick cause a large performance hit?