Will Federal Unions be able to protect employees against RTO mandates?

In our CBAs it specifically states telework and remote work. I was hired as a Remote US worker outside of 50 miles from DC. With no incentives to move (not that I would take it), that goes against the CBA, which is law. I know the administration ignores much of the law, but isn’t there grounds to protect remote work with our CBAs before they’re requiring employees to return. Apparently I heard sometime in May. But this is rumors from my agency, as of now.