When the roots look like that I behead them to give the succulent a fresh start. It’s up to you tho.

I see what’s happening to your succulent a lot when they are potted in a high peat based soil. Peat when it dries out turns hydrophobic and will also choke the roots. So in turn the plant will have a weak root system. Idk if that’s the culprit in your echeveria’s case, but it is really important when one first brings home a succulent from wherever that they clean the old soil off the roots before being put into the new mix. The new mix should be amended with half perlite and or pumice/ half bagged cactus soil.

thank you very much