There are ways and ways of doing it.
In Firefox, I have a large user.js that changes, blanks or disables hundreds of configuration options in order that my browsing can stay relatively private and secure. Needless to say, I would not dream of enabling anything with the faintest smell of telemetry.
In Nextcloud, a product produced by a business run as a proper business and not trying to pass itself as a "foundation", I not only enable but actually take positive steps to submit telemetry.
The main difference, other than trust in the intentions and competence of the respective developers, is that Nextcloud's telemetry consists of a relatively short JSON object which can be easily reviewed (and edited if needed) in less than a minute. It does send a presumably unique "installation id" and no other information that could be claimed to be obtrusive even by a paranoid like truly yours.
I use Firefox, because that's the devil I know, but I have had zero (nay, negative) goodwill towards them for a very long time now.