Existing regulations should cover software in their respective industries. Outside of that what you are asking for is simply onerous and isn't something that can be regulated in a meaningful manner.

We've already had opensource projects threatened by the age-check legality nonsense (which cannot be enforced). If you regulate what features can/can't be in an OS you will end up negatively affecting opensource and/or hobbyists which will give the consumer less choice.

The only reason we have an actual alternative to Windows is because people create their own Linux distros and software around it.