It is very hard with flux to control the amount of denoising you want (via img2img or inpainting). Or rather, it seems like whereas with older models you can pick denoising points from low to high and get the image to gradually change more and more as you get to 1.0, with flux it change the image very minimally until about 0.9, then suddenly it changes it massively. Also, it seemed like with 1.5 and sdxl, the number of steps it actually uses is a function of denoising parameter. But with flux, it always uses all the steps every time.