Sorry, but where is this link "clicking on LNURL-pay" I dont see it in the UI.
You won't find the link in the Electrum UI, the link I was referring to is displayed on the playground site that I provided a link to:
https://lnurl.fiatjaf.com/That site produces a variety of LNURL links, one of them is labeled "LNURL-pay." It's just a way to test if the links can be used with your wallet.
OK, I get that part.