Will web3 companies be able to monetise well one day?

I see a huge number of web3 companies that I just don’t understand how they’ll make money. 

Even if what they’re doing is important.

Building getinboxzero.com and sharemint.xyz.

I also run a YouTube channel, "Learn from Open Source": youtube.com/elie2222 

are there any you'd be willing to name?

I didn't understand how social media would monetize back in the 2000's, I just didn't understand it well enough... sometimes it feels a little like that these days. tho the business models are entirely different.

I wonder if it's the same mentality of figuring it out as we go?

Evangelizing Incentives That Combine Self Interest With Collective Benefit & A Few Other Things I'm Still Trying To Figure Out

I hear you. Very hard to predict the future. Wallets is one category I would have found hard to monetise a few years back but MetaMask has made a tonne. Ledger too from its Ledger Live app.
Others like Rainbow and Zengo will probably struggle for a while but will probably get there eventually