tor (TBB) doesn’t work for everything and most people want something fast and convinient that only takes clicking a few buttons to get working. They will think it is too much work.

I recommend Brave browser which can use tor in private browsing mode but also has a regular browser with encrypted DNS (cloudflare, https strict, and shields) for things like banking, shopping, and online accounts (that might help to have a password manager for).

Also, Tor browser does not have any passthrough for security keys but Brave based on chromium does. Tor browser does not have a password manager.

Firejail should work on a profile for Brave as sandboxing is always helpful. TBB can be sandboxed easily, however.

This “multi-tiered” approach would be better for most people who aren’t just accessing a handful of onionsites that replace or are in opposition to an entirely different set of services than those usually accessed on the conventional internet (online banking, social media, a few publication sites, and a search engine).