Loyalty isn't rewarded, at all, unless there's an additional reason for the reward that can be disguised under 'loyalty', where 'reward for loyalty' is pointed to as an internal marketing exercise to motivate the workforce.

As soon as the underlying reason(s) no longer exist, loyalty will be revealed to have evaporated.

I've seen it multiple times at multiple companies. A couple of which were employees of over twenty years with the respective companies. None of which were bad places to work, or in any way brutal with their employment policies or conditions.

That's just how it is.

The best thing to give a shit about is the quality of your own work. That will serve you well for now and the future.