I searched a bit for it and found out, enough other people are having the same problems. High CPU usage for Pages and several iCloud-specific deamons.
I'm using the most recent non-beta versions of macOS on M1 Macs and rely on iCloud to let it sync my data between those. My Pages document is only about hundred pages of pure text without anything complex. And I'm a security and cleanse fanatic, so nothing on my Mac would disturb a normal functioning. And there's no additionally security software installed.
So the problems are 100% Apples cause. I even tested it further. After opening the Pages document everything is ok. Since I first change anything and even after I saved, the bug kicks in an keep staying while the document is opened. I looked in the Konsole.app and saw tccd is generating plenty of messages there. But what took my attention, is fileproviderd, which is creating errors over errors. So I guess there's a iCloud-sync bug, that causes an infinite loop of trying something with iCloud and never manage to correctly finish it.
But I can't tell, if the bug it's Pages-specific only. Because I even had data loss with other files synced over iCloud Drive. But only with Pages I noticed the additional high CPU utilization.
So it's Apples duty to fix that. I hope they will. Because over the last years I earn more and more negative experience with bugs in macOS and despite I reported all of them again with every major version, nearly none of them have been fixed till today. Apple seems not interested anymore in software quality 😢
I can't understand, why shareholders prefer an unstable system only to let the users get flooded with new half-baked features.
Wheren't macOS Snow Leopard celebrated by everyone for its focus not on features but on performance and stability? Why don't do such a year again of only making macOS "great again" 😅
Sorry for the wailing, but I finally needed to write that once, instead of being frustrated all alone with this…