The single best thing about DOS in 2025 is that it is the base for the best virtual machine, DOSBox. If something runs in DOSBox it will always run. DOS software can not rot. No APIs change. And DOSBox has been ported to almost every platform, including browsers and phones.

Of course it would be nice to also see that kind of stability in modern systems, but since that seems to be impossible for no good reasons the next best thing is to run applications in a dead OS like DOS that has good emulators.