Only if you sing in with your Microsoft account and enable Bing rewards, and share every page you visit with Bing. /s

Isn't repairing software free? One doesn't really need 'spare parts' for software.

We just need the software to be open-source.

Honestly, given the necessity to get security upgrades, I think companies would still buy an OSS windows with connections to repositories.

You certainly do not have the rights or access needed to repair bugs in current software like Microsoft Office or obsolete software like the original WordPerfect. Copyright law blocks those rights and Microsoft/etc block access to the source code and information about compilers etc. Also the DMCA allows companies to technically block access to updating software on devices.

I would say different people would have a different understanding of "Right to Repair for Software".

My personal take is mainly focused on more verbose diagnostic outputs(like for people stuck in "just a moment" screens alike) and more management tools(like some basic control and logging for BackgroundTasks of UWP apps).