Prologue

First - everyone should re-read the post: https://twitter.com/elonmusk/status/1656748197308674048 which started this panic. In particular, note the second paragraph on how he is becoming the executive chairman instead of CEO.

A lot of people think "the CEO controls the company" and for some companies that is the case. Companies with no board of directors (eg private companies) often have a CEO leading them, like twitter has been since Musk bought it and made it a private company again. However, by making himself the executive chairman (with no other board members), the power still lies with him.

CEO vs Executive Chairman

A Chief Executive Officer is responsible for the strategic direction and the overall running of a company. It is traditionally a position of near ultimate control strategically, and affords a lot of power over appointing other executives and directors. They also have to work out how to get investment under the boards supervision.

The chairman of a company board is above the CEO. the CEO reports to the chairman, and the chairman can fire a CEO, especially if he is the only person on the board (which is the case for musk).

Why no one panicking about the new CEO is playing chess

1. Everyone sees the CEO label and thinks "they will control twitter" where in fact musk still has final say on CEO decisions
2. Elon is also owning the CTO post, so he still has technical control of code and product development, so the CEO won't be able to steer the direction of technical development and will in effect be reporting to the CTO.
3. Given the above, the CEO post is a bit of a "face of twitter" role. It is one which could be anyone and it won't really matter. Musk still will run the important parts directly, and will still have ultimate power over twitter (until a real board forms), while the new CEO has to take the bad press and deflect it.
4. This new appointment being a woman who is a WEFer is brilliant to my view when looked at in this lens. Musk has taken a known globalist and made them into a form of human shield for twitter. She now has to run cover for Musk and protect twitter from the bad press financially, in order to attract investment along musk's direction.

Conclusion

I pity whomever takes this role, regardless of who they are. They'll have no real power, they'll be constantly trying to make twitter look good in the face of anti twitter pressures from the lefties they always supported before, and in effect will become pariahs if they come from a globalist position beforehand. Plus, musk can discard them as he sees fit, especially if they a) break ranks with him or b) no longer become useful to him. Once they are no longer effective verbal bullet shields, musk can hire someone new to replace them.

That's my two cents on this shift. It's a game of misdirection and semantics, with no real difference in what will be occurring. Musk wants twitter to be profitable, and this acts as a shield for him to achieve that goal.