[Wintereise]

Multiple tier1 networking "routes" are really, really easy to do these days. It's within the reach of pretty much anyone with a semi-sizable engineering budget. This includes carriers like CenturyLink/GTT/NTT and most of the global tier ones. The carriers are hungrier than ever for business, you can do this at a fraction of what AWS egress costs per GB.

So yes, really. Nothing on your list is unattainable at much, much lower cost if you're willing to put in the work at maintaining it yourself (no cloudformation at most traditional providers of this stuff, and while you can somewhat roll your own with k8s for /some/ stuff, the offering traditionally is nowhere near as cohesive.)

The non-open source but complementary services (think Dynamo/EventBridge etc) are imo AWS' real strength. If you need to be able to just throw cash at the problem and never worry about capacity management yourself, AWS (and GCP, and Azure, and <insert PaaS provider here>) is usually an excellent fit.