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Microsoft in their infinite wisdom has replaced the Hide Desktop icon with Copilot.
(programming.dev)
This is a most excellent place for technology news and articles.
I personally really like StartAllBack. I just want a clean classic Windows experience.
Not sure if it'll help with OP's rage issues (I skipped over the all-caps and punctuation-free stuff), but I've long been a fan of Open Shell. Makes the Windows experience extremely customizable.