SSD partitions question

I would like to utilize an SSD disk with my RPi4. I have successfully installed HA via Raspberry Imager. However, upon checking the Disk Manager on my Windows computer, I noticed that it has two partitions. I am curious as to why this is the case and how I can combine them into a single partition.

Strange. If you flashed HA OS, you should have 8 partitions.

Have you actually booted HA from this disk yet? If not, that is correct. HAOS will extend partitions and create new ones on first boot.