He didn't cut government spending, just ask the GAO. He did though go on a rampage to prove that brown people weren't worthy of the positions they held.
They're pretty well known for lawlessly purging bureaucracies of experienced, civil servants loyal to the rule of law, to make way for cronies and regime loyalists.
They're pretty well known for scapegoating and persecuting immigrants and minorities and "enemies within" - and engaging in political projects to imprison and/or eject them from the nation.
Musk didn't cut government spending. Legally, only congress can do that. They increased spending. 10s of billions of that spending has gone to towards a mass build out of prison camps where many people, citizens included, are being held in horrid conditions indefinitely without due process and without being charged with any crime. This seems to be a project that Musk supports.
You could do this misdirection thing on x but here, you'll find people who see through this tactics instantly.
Yes, he has cut expenditure but what has been critiqued was WHERE he did that.
USAID for example.
And yes, he did fail to save (much) money in the process and it will cost the US even more in the future because the loss of soft power, intelligence, etc. USAID alone provided is unmeasurable high.
And this is just USAID as an popular example. There are thousands of veterans who lost their jobs. Waste, fraud, or abuse are missing and what remains is a cringe clown rising his arm because he's so edgy and needs attention very very desperately.