[Morgana]

Strange, was always taught that fabric softner helps stop fabric from “bleeding” or loosing it’s color long term.

[Blue Jays]

Garment care is a whole new world with quality front-loading washers.
Use color-specific detergent for dark colors and wash for the least amount of time, in the coolest temperature...that still gets the job done.
Then hang-dry most clothes. It is shocking how long things can last.