Cloudflare also works in Europe and has POPs there so I don't see why you couldn't use that. But there are also Hetzner VMs if you can configure sometime a bit less turnkey and don't necessarily need a CDN but just hosting mainly.
The problem is that it is still an American company, which is subject to American laws, which these days are fairly arbitrary and subject to change as often as the direction of the wind.
To a European it is not much different these days from hosting it on Alibaba Cloud or Yandex: you don't want to rely on hostile powers for critical infrastructure.