Each node is charging its own fees for routing and the sender COULD NOT decide which rote exactly should take. The only thing can decide is the first hop, first peer with which is connected.
You are completely incorrect. Lightning is onion routed, at the source. The sender is 100% in control of how the payment is routed (modulo wallets like Phoenix, which trust a third party to do that routing for them; but that third party is 100% in control). Nodes in the middle don't even know the route the payment is going to take, let alone choose it.
But you cannot decide manually the route, only if you do it yourself in a cli command, with route hints and be sure that those peers have enough liquidity. Those mobile apps cannot do that. I am totally right when I said that user cannot control the route.
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You the user aren't deciding that. But your wallet software is deciding that, at the source. And you can control that decision, eg with the max fee limit settings available in most wallets.
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Even if you have the option to put a max fee, that will not guarantee that the payment will go through. Will just fail with error "no route".
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