Question about Huawei P40 Pro

Side loading would be a possibility; there are some instructions on the Internet. However, I strongly advise against buying a phone that does not have the Google Play Store. The risk of catching something is not insignificant. There are enough very good alternatives, e.g. from Google, Oppo, One Plus or Xiaomi, and the risk of having to struggle with an unsupported Huawei phone is not worth it in my opinion.