Of course my provider will handle large DDoSes, as long as they're not hundreds of Gbps large. In which case there's not much anyone can do, frankly.
Regarding edge caching speed: we're in an age where your phone executing the shitty bloated JS is the bottleneck, not actual latency.
How do you handle large DDOS? Your provider won't, they'll nullroute your IP because they don't want to waste their bandwidth on your issues and impact all their other customers.
Also, using a global CDN with edge caching speeds up loading your site significantly if the user isn't close to the DC.
Regarding Hetzner: what's the verdict on them having to comply with the CLOUD Act via their US subsidiary?