I am at the point where I would happily pay an annual subscription on the order of a few hundred dollars per year just to avoid the headaches of today's browsers. Don't add new features, don't change the look of anything, just give me security updates and bug fixes. The only problem with this model is what we saw happen to the streaming services; paying to avoid ads just means your data is worth that much more. Paying for a higher-tier plan is a signal that you have a greater level of disposable income, and are hence more valuable to advertisers.

When this topic has been discussed on Hacker News in the past, it has also been pointed out that developing a browser with feature parity to Firefox or Chrome would be prohibitively expensive.