I think you’re viewing the issue from an office worker’s perspective. For us, downtime might just mean heading to the coffee machine and taking a break.

But if a restaurant loses access to its POS system (which has happened), or you’re unable to purchase a train ticket, the consequences are very real. Outages like these have tangible impacts on everyday life. That’s why there’s definitely room for competitors who can offer reliable backup strategies to keep services running.

Those are examples where they shouldn't be using public cloud in the first place. Should build those services to be local-first.

Using a different, smaller cloud provider doesn't improve reliability (likely makes it worse) if the architecture itself wrong.

Do any of those competitors actually have meaningfully better uptime?

From a societal level, having everything shut down at once is an issue. But if you only have one POS system targeting only one backend URL (and that backend has to be online for the POS to work) then cloudflare seems like one of the best choices

If the uptime provided by cloudflare isn't enough then the solution isn't a cloudflare competitor, it's the ability to operate offline (which many POS have, including for card purchases) or at least multiple backends with different DNS, CDN, server location etc.