Physics the same. Chemistry is just applied QED, so also the same. We can reasonably assume that they are not an antimatter critter. So even the margins of reality should be the same. Whilst chirality is, we assume, a random choice, the rules remain the same.
You might buy an argument about mathematics. The essentials are going to be much the same. Very hard to imagine there can be anything other than the basics of pretty much anything you will see up to the end of an undergraduate mathematics degree.
The order, and emphasis may be different. But if anyone is doing physics, engineering, science of most kinds, the tools won’t be different in nature.
It does bring up the question of whether mathematics is invented or discovered. Which is why it might buy an argument. Discovery suggests everyone in the universe will find the same things.
It isn’t impossible that a different fundamental basis of some area of mathematics underpins an alternative. But something that is becoming better understood is how there is a common basis that allows us to view them as simply different sides of the same coin. There are lots of areas that we now understand to be equivalent in a deep manner. There isn’t necessarily a one true road to calculus, but the tools, once derived, are hard to argue with.
They probably don’t have a theory of computation based on Turing Machines. But they will have an equivalent theory that you could prove is the same thing via appropriate transformations. Such as Lambda Calculus. So Turning invented his machine, but the fundamental theories of computability were discovered and are equivalent no matter what the underlying mechanics are.
It isn’t impossible that the mathematical tools of some aspects of fundamental physics (GR, QFT) could be expressed with significantly different mechanics. Accidents of history partly inform the tools we have. We are still trying to work out the basics of reality, so maybe the order of mathematics available leads to a different order of exploration of mathematical physics with better, worse, or just plain different outcomes for an alien species.
So those areas where we are still discovering stuff will be where we would expect diversity.