In one deleted scene, Thor discovers Zeus hiding behind a curtain and eating ice cream in Jane's hospital room, hilariously undercutting an emotional moment between Jane and Thor. Zeus then tells Thor to come with him because Zeus has something he might need. The next deleted scene shows Zeus revealing to Thor that Thunderbolt is just a representation of their godly powers. Zeus then teaches Thor how to turn anything into Thunderbolt, and Thor even pulls his own Thunderbolt from thin air.
These Thor: Love and Thunder deleted scenes reveal not only how Zeus' powers work, but also how he wasn't initially supposed to be a villain in the MCU. This moment between Thor and Zeus even has the same warmth as the conversations that Thor and his father Odin have shared in the past.
Emphasis mine, which is probably EXACTLY why this was cut (and to also set up Hercules), here's the source.