adobe, microsoft, et al. also faked the fix and incorrectly fixed it by exporting into other formats in a broken way. locking in makes sense from a VC point of view.

from my point of view the only way to guarantee is to use software that provides open file formats and develops their features around those open formats. inkscape and sketch seem to be doing this

That's not going to work. People will take features over unknown future uncertainty. Users just have to realize the past mistakes of other companies and pressure the developers to open the format.