With the rise in unfriendly bots on the internet as well as DDoS botnets reaching 15 Tbps, I don’t think many people have much of a choice.
One related topic I've seen brought up is Workers abuse https://www.fortra.com/blog/cloudflare-pages-workers-domains..., but that goes against this claim they do nothing when reported.
Same thing with any service that hijacks and redirects your session.
Almost always CloudFlare.