Can I use a bootable pen drive to store data other than Linux OS? [closed]

Can I use a bootable pen drive to store data other than Linux OS? I have this pen drive

Sandisk Cruzer Blade

Different bootable USB drives

Maybe the most convenient way to get what you want is

a persistent live drive or
an installed system in a USB drive (installed like into an internal drive, but in this case to a pendrive).

You can also have a live-only drive with part of the drive for storage.

Edit: The Sandisk Cruzer Blade series are reliable but slow USB pendrives. I would not recommend an installed system, but rather a persistent live or live-only system with a partition for data storage on that kind of drive. I would also recommend an Ubuntu flavour with a light desktop environment (Lubuntu, Ubuntu MATE or Xubuntu).

See these links:

About file systems

How do I copy a file larger than 4GB to a USB flash drive?

About bootable external drives

How is it easier to make a persistent live drive with Ubuntu 19.10?
How do I install Ubuntu to a USB key? (without using Startup Disk Creator)
How to Create a Full Install of Ubuntu 20.04 to USB Device Step by Step
Installation/UEFI-and-BIOS
Installation/FromUSBStick
How to install applications in ubuntu while using live persistance usb?
Live USB with persistence vs full install on USB?