When using Render Texture with a render scale set below 1 in the URP asset (for instance, 0.5) and having Post Processing enabled on my RT camera, my Render Textures come out as the bottom left quadrant of what the camera actually should be seeing. This is a very undesirable result, and frankly I would expect that RT should ignore render scale altogether (that’s why we set the size of a Render Texture directly, yes? It tells what resolution to render explicitly already).
The reason we use render scale 0.5 for the game in the first place is to achieve a pixelated look as there doesn’t seem to be a better alternative than just truly rendering the game at half resolution as render scale does.