Impoundments are impoundments. This is illegal and they know but don’t care.

They should all be impeached for violating their oath to the Constitution

The President cannot ignore the law unless Cofmress allows it by refusing to impeach. That's all this comes down to. Congress is complicit. Vote them out.

So Russell Vought has come up with a master plan to carry out Impoundment while adhering to the letter of the law (sort of). OMB is running out the clock at multiple agencies by freezing spending for the year and return appropriated funds. Agency after agency is receiving instructions by phone (so as to not have a paper trail) to slow-walk spending and OMB might submit a rescissions package at the end of the fiscal year which would leave Congress with less than 45 days to act. And Collins hasn't even expressed "concern". There is but a single report in the media

https://www.eenews.net/articles/white-house-looks-to-freeze-more-agency-funds-and-expand-executive-power/

Looks like Congress is going to roll over on this one. RIP science funding (and a whole lot else).