Does MetaMask support RLB?

Excuse me, could you clarify something for me? I've been doing some research on digital wallets and specifically, MetaMask. I've come across some discussions about RLB, but I'm not entirely sure what it stands for. Could you tell me if MetaMask currently supports RLB? If so, could you explain briefly how it integrates with MetaMask and what benefits or limitations it might have for users? I'm really interested in understanding the compatibility and capabilities of MetaMask with regards to RLB. Thank you for your help.