I don't think this was the last time but a giant company,
Starbucks, started accepting bitcoin and ethereum way back in 2021. This was huge since we know how popular and successful starbucks is all over the world. They enable payment through an app called SPEDN. Customers can hold their cryptocurrency in this app and use it to pay through a qr code they will just present at Starbucks.
It was never through direct payments, though, was it? and if it was, it definitely wasn't through LN cause it was not as popular back then.
If we're talking big companies, then Microsoft did start accepting Bitcoin at some point If I'm not mistaken but ditched it afterwards.