Wallet browsers are basically a symptom of the webapp era of crypto.

Smart wallets mean that we are trending towards apps with wallets, instead of needing a wallet for all apps.

Less convinced by their need now and in the long term. Easier to swipe between apps on a phone than to bounce between websites in a browser.

the important problem to solve is that you can have one wallet that you can carry between mobile apps like you do between website,  minimizing fragmentation.

I like what Coinbase smart wallet is doing. Interoperable wallet that apps can build on.