SDF textures go into the GPU, right?

This is probably a stupid question but just wanna check before I make stupid decisions. I'm doing a project where I'm using SDF textures to create an environment only using VFX graphs, which leads to a lot of SDF textures. I don't want to fill up the vram completely with SDF's so before I start scaling this thing I need to make a decision on a sensible SDF resolution to go with.

My guess would be that the SDF texture is stored on the GPU as it's a texture, even if it's only used to get position data and never actually rendered. Is this correct?