Layer-2 on Ethereum is growing, the opportunity for Layer-2 projects on Bitcoin is huge 
There is no doubt in that, L2 projects for BTC will streamline the adoption, those who have left BTC as a payment method will adopt it again and the volume in BTC will automatically increase. Till now I have read almost 3 different ideas about L2 solutions for BTC. One was on another forum, where the OP proposed that our current BTC will be staked, (HOW?) that's another thing. But after staking, we will be given money of equal worth.
And we can use that wrapped form of BTC on L2 of ETH, while we will be making profit from that staking as well, i.e. we will be making some token (utility token of the project) but this makes the whole thing centralized. I think we should give this wallet some time, as it is new and even if we are using it, we should not hold big amounts on it.