Not understanding install ubuntu comment on USB

I am very new to ubuntu. have a HP laptop and installed (I think) Ubuntu (latest version ) with persistence on a 128 gig usb. I booted to the USB drive and ubuntu desktop showed up. However, I see two icons that say install ubuntu. I am not sure what that means. I thought I had installed ubuntu on the usb. Is this saying I could install ubuntu over the top of windows 11? I dont' want to do that. Help to understand what the USB contains and why do I have the install ubuntu icons.

Solution 1:

From your description, seems like you created a LiveUSB with persistence, NOT a full Ubuntu install. A real installed Ubuntu system does not include an installer -- it doesn't need one.

A LiveUSB is used to test Ubuntu ("Try Ubuntu") and to Install Ubuntu ("Install Ubuntu"). The "Try Ubuntu" environment is a fully-featured, fully-capable Ubuntu system. That's probably what you are seeking.

Yes, clicking the wrong set of options carelessly in a certain sequence will overwrite and destroy your Windows 11 install, and lose all your Windows data. You can avoid that simply by paying attention instead of being careless. You created and booted an Ubuntu installer. That's what installers do.