I don’t trust them but they are a necessary evil for some tasks. like messaging apps, what use is Signal or other secure/foss messaging app if the people you need to communicate with uses meta products. so it is necessary for me to use meta products in order to facilitate communication with some group of people.
Operating system our company only uses windows and provide a laptop with windows as an OS. now why would I go to trouble myself in reformatting this laptop to unstall other OS when it isn’t even mine and would get me into trouble, not to mention break compatibility with my worke ecosystem. so, i use windows.