You have the [same RPMs in every gear. You have the same power in every gear. ](https://qph.fs.quoracdn.net/main-qimg-a69447cd5dc3409a047fcc11d1eb950c)
Get on a 10-speed bike and try to start riding in 10th gear. Now try to start driving in first gear. Higher gears only work when you’re already going fast.
OR, play a game like Forza Horizon or Ridge Racer with manual shifting. And drive around with manual shifting. And watch the RPMs. You can even turn on “telemetry” and watch how the power level changes (which will match the diagram I linked earlier, roughly).
When you upshift, RPMs will drop but only for a moment until you move up through the RPMs again. And again…in every gear.
If someone says “lower gear means more power” just ignore that, they may have meant that you have more usable power *when going slow* or starting from a stop.
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