Exactly, 💯. That is connected with the LNURL and static address for every amount.

This is a simple invoice for example. I created it directly in the note using #Amethyst client. (You can also creating it in your Wallet and copy/paste in the note)

lnbc10n1pj9ntl4pp5ygdtv3dq5pfj35svk7g7tj44e4qnfxzzatflvw6gfl37jnprwcjqhp56dezkhr755vnn7fcrl79glxa4p8ygjlvkt6rex2trlmn50m8ddfqcqzzsxqzjcsp502h598ttn7clsv4z52w6eext800rhdx5r9whguv7yeyxk4my87ms9qyyssqs886apzesjc3qmt8zn8qkud2w4a6f0lke58ze9zszurr75mjc0wyaumqjsex70q3ttxrg5a0tlnz4uuyusem0mrjz8q4l7s23katq7cqf9aj2p