Or would such interpretation of omnipotence logically entail that the being has free will? So if the being will choose to lose its free will it will with necessity lose its omnipotence too.
"Is the pious loved by the gods because it is pious, or is it pious because it is loved by the gods?" - Plato stating the Euthyphro dilemma.
Are a god's actions forced by it's character, to choose omnisciently the option that matches fixed values? If so then, yes we can at least imagine an omnipotent being with no free will.
Does what is good change, & develop? The Christian deity seems less vengeful these days than in Old Testament times..
Note--- I formulated a logical answer via omniscience not omnipotence, however the answer is still applicable, just substitute the term omnipotence with omniscience.
Yes, yes, yes, and yes. I've thought about this exact concept time and time again. I will first say I currently don't believe free will exists, i.e. all action is enslaved to perception via 'molecular neural computation' sculpted by perception.
I do computational neuroscience, so given a free-energy principle formulation of behavior and Anil Seth's nociceptive predictive coding model for conscious presence, I believe all conscious awareness to be the result of a prediction error arising hierarchically from within that neural computation, represented as information-theoretic free-energy, the gulf between what is expected and what actually is. Given you're omnipotent, I don't think you'd even be conscious, because the entity needs error to act and become aware of thoughts.
Causality & Time
Omnipotence would require a perfectly describable physical causality to exist directly tying effects to prior causes, presupposing a physics engine within an entity's brain so attune to predicting the world that even time is rendered obsolete.
Yes, choosing to lose its omnipotence practically speaking is like saying you lose an awareness of all physical variables in the universe that determine causality totally. Meaning you'd have to maximize model evidence by epistemic foraging to yet again reduce error that arises in the mind, because you won't know what steps to take to will something into reality, from a sandwich to a nuclear weapon, unless you interact with the world in ways that add to your internal physics engine.
I loosely described a lot of the mechanics. I also went fast forming this answer. Most all my thinking on this topic stems from the movie Arrival, where aliens arrive that we try to communicate with. We later find out they don't perceive time as linear like we do, reflected in their non-linear language. If there are beings that see time as another spatial dimension, does that presuppose omnipotence? i.e. knowing enough variables to reduce universal causality to a series of neural equations, I certainly think so. It's such an extraordinary topic to think about. Please ask me questions. I'd love to discuss further.
Creating a "God"
Editing to allow a logical stipulation: currently we can't describe a complete universal causality with a series of equations. There are hidden variables existing outside our perception that hinder determining the causal mechanics, i.e. the quantum fluctuation of particles in a vaccuum, gravity being diluted because it's seeping into some hyperdimensional space. Given there exists no ceiling to uncovering hidden variables, then yes you can eventually create a mechanics of universal causality. What if this omnipotent being existed in such a way where it was completely aware of our reality's physical causality, yet had its own hidden variables, forever unreachable within its own plane of existence. i.e. an entity all knowing of our reality yet still has an unquenchable prediction error via the unreachable hidden variables within its own that allows it forever possess a consciousness and a cognition promoting action and the awareness of thought. It could manipulate our reality, essentially changing the determinable future, but still exist as a sentient entity with a "free will." I just both pat myself on the back and pinched myself. I'm happy with my novel formulation; however, it's one of an omnipotent being existing in the dimensional layers between our reality and the metaphysical realm we attempt to approximate with equations. God? Hopefully not.
I'll end with this. Knowing the mechanics from which your strings are pulled doesn't eliminate the existence of said strings, it just allows you to grab hold of one of them.
Omnipotence is such an absurd concept that it leads to absurd conclusions.
An omnipotent being can and will do anything it needs to do, instantly without any uncertain attempts or intermediate steps. Whenever a need arises it is satisfied instantly.
Therefore an omnipotent being has no choice and no free will.
Free will is the ability to choose the method by which we satisfy our needs. An omnipotent being does not have to choose, it can make things right instantly.
One could even say that an omnipotent being has no needs at all, no reason to do anything at all.