My recent substack from Paul Krugman says it's a scam and people risk never getting any pay while they are on "administration leave". There are also legal issues about pay for such a long period and so many without being approved by congress. Speculative, but he's no slouch either.
"There are five things you should know about this plan:
1. It’s illegal
2. It’s almost surely a scam: workers who take the offer probably won’t see the money they’ve been promised
3. To the extent that workers actually take up the offer, they’ll be the workers we can least afford to lose
4. The move will cost, not save money
5. What this really amounts to is a purge, replacing professional civil servants with political loyalists"