1 Voluntary Employee Exit Program
What are your sources? There is nothing voluntary about this. Workers have been told they either take the buy out or risk being 'RIFed'. A RIF is a reduction in force. It means being fired. So, if the 'voluntary' exit is not taken, possible ruin awaits those who don't 'volunteer'. Wait, this gets better. The promise of payment for 8 months is not backed by funds. There are no funds to pay these people for eight months. The House of Representatives votes on the new budget/appropriations/debt ceiling in March. The funds to pay the 8 month salary are not there, may not be there. Plus, such a promise may not be legal.
Keep in mind that funds for running the gov't come from the House of Representatives. They have the 'power of the purse'. The first article of our Constitution gives authority to Congress before the President. The President answers to the Congress and the Courts. This tradition of having a Constitution dates back to the Magna Carta. Then the king could not rule without answering to Parliament. Our Constitution is far more powerful than the Magna Carta. The role of the Congress far more defined and controlling.
Our democracy is based on Constitutional government. One person can't just sign a paper and eliminate agencies established by Congress. That would place us back hundreds of years to a time when kings ruled and people had little recourse. But even then, kings had to be careful because they could literally lose their heads if they disobeyed Parliament sufficiently.
You may agree with the goals of this president and of Elon Musk. In a Constitutional republic, process becomes paramount. Process defends the people from autocracy, from one-man rule. Process can be tedious and irritating, but it is all that stands between the people and an autocrat.
I have equally involved responses to your other points, but this has gone on a bit so I'll stop. Just know please that the rosy picture you describe is not reality as we live it here.
Know this though: most 'regulations' were passed by Congress. One man, with the stroke of a pen cannot eliminate them not if that man is following the Constitution as he swore to do when inaugurated.
Plus, one must presume that many of these regulations were passed with good cause (consumer protection, for example). It might take a bit more thought to decide whether or not these are truly 'unnecessary', or whether they simply are irritants to the people who have assumed control the U.S. government now. Those people are hardly representative of most citizens. They are overwhelmingly billionaires/millionaires and captains of industry. As Adam Smith observed a long time ago, the interests of those who run business rarely coincided with those who labor.
I'll stop now. There is so much to say, but I'm sure you don't want to read all of it.