Your Eevee 3D model is stretching mainly due to incorrect UV unwrapping or an unapplied object scale. UVs that don’t align with the model’s geometry distort textures—this is the top culprit. An unapplied scale (resizing in Object Mode without Ctrl+A > Scale) also messes up how Eevee projects textures onto the model. Try two easy fixes: Check your UVs in the UV Editor for warping, or apply the object scale. These simple steps usually resolve the stretching issue.
