What happens to me as a Huawei user?

And yes there's this funny Huawei scandal in the US, but I do not understand what's going on there.

In any case, I have a Huawei Y5 and now wanted to ask what is going to happen here now.

Not much. You can continue to use the Google services and continue to receive shingency updates. Only an update to a newer Android version will not be available should the sanctions fully come into force.