So in conclusion:
Dont use netdata anymore, if you like it fully open source.
Dont use netdata anymore, if you're interested in not being forced into a subscription model sooner or later.
Dont use netdata anymore, if you're interested in long-term availability of "the vibrant community" they claim on their homepage.
Dont give them your code under CLA.
And DUCK the Marketing Responses from them, and them trying to keep up the good looks of being open source while enshittifying.
You've made it this far, have a few bonus images where they lie about their "platform" being open source - remember, only the agent is, and they want to make you pay (with data, or money, subject to their terms) for viewing the data going forward: