Looks like LN will be supported, since they are using TripleA as the payment processor:

> Our crypto payments services support Lightning Network.
>
> It allows fast and cheap payments directly between two parties by keeping the transactions off the main network.

*I have heard of Lightning Network (LN)? What is it? Do you use it?*
https://triple-a.io/triplea-support/i-have-heard-of-lightning-network-ln-what-is-it-do-you-use-it/

ClubAlpaca

"We are excited to offer cryptocurrency as a payment option for customers shopping on the FARFETCH Marketplace. Customers are increasingly interested in new payment methods and cryptocurrency is growing in importance with luxury customers.”

FARFETCH Platform Solutions will also offer cryptocurrency payment capabilities for luxury brand clients with Stadium Goods launching imminently.

TripleA processes cryptocurrency payments on FARFETCH’s behalf, supporting Bitcoin (BTC), Ethereum (ETH), USD Coin (USDC) and more.

https://www.farfetch.com/sa/shopping/women/items.aspx

bitcoin

FARFETCH Offers Bitcoin Payment Option for Customers in 37 Countries

> "We are excited to offer cryptocurrency as a payment option for customers shopping on the FARFETCH Marketplace. Customers are increasingly interested in new payment methods and cryptocurrency is growing in importance with luxury customers.” 

> FARFETCH Platform Solutions will also offer cryptocurrency payment capabilities for luxury brand clients with Stadium Goods launching imminently.

> TripleA processes cryptocurrency payments on FARFETCH’s behalf, supporting Bitcoin (BTC), Ethereum (ETH), USD Coin (USDC) and more.

*Shop on FARFETCH*
https://www.farfetch.com/sa/shopping/women/items.aspx