Hello,
No, it is not normal for the heatsink on your B550 Aorus Elite AX V2 motherboard to not be making contact with your Crucial P3 SSD after you have properly mounted it. This could potentially cause the SSD to overheat and may affect its performance over time.
You may want to double-check the installation of the heatsink to ensure that it is mounted correctly and making proper contact with the SSD. H‑E‑B Partner Services