Your comment is very confusing. React does not require use of Observables in any way. I also have no idea what your second and third points could be referring

Your comment is very confusing. React does not require use of Observables in any way. I also have no idea what your second and third points could be referring to. If you can supply some links as references, I can try to provide some context or explanation, but at the moment you seem to be making up things that don't exist to complain about.