Do you like to solve people-problems or computer-problems? I mean, from a really black-or-white style lens, this is what it all boils down to. People problems like managing teams and/or being part of meetings where the future direction of a product is discussed, market-fit evaluated and re-evaluated, decisions are made on what to do next, exercising diplomacy, seeking consensus etc, etc... I mean, all these aspects or at least a combination of these together with the technical aspects, will be much more prominent when in a PM role than a backend developer, so, essentially, choose according to what you like or want to do.

An important point: don't see it as a "should I consider it or stay a BE developer?" kind of thing. If you accept the PM role, even if it means more money, the skill sets and responsibilities will be completely different so be aware of that too.