Do I install HiveOS on my PC or always boot from USB Flash Drive?

I am a newbie and I downloaded hiveos-0.6-211-stable@211104.img.xz
and used Etcher to write it to a USB Flash Drive.

However, it seems when I boot it up, it lets me choose HiveOS but won’t let me install it on my PC. (like how Ubuntu would ask if I want to install as the only OS or install it on a partition).

Can I install HiveOS on my PC’s hard drive?
Right now it seems if I boot it up from USB Flash Drive, and type “reboot” to boot up the computer again, my log in to HiveOS on https://the.hiveos.farm/ using FireFox is remembered, so is it true that my USB Flash Drive is acting as a Hard Drive for HiveOS and HiveOS is running off this “hard drive”?

If so, can I also choose to install it on my PC’s hard drive? What about using an external SSD drive? Those should be much more efficient than a USB Flash Drive.

Thanks so much.

I went through this headache earlier this week…. Get a separate SSD drive…… don’t try putting it on the same portion as windows….