It has been my experience that it is a bigger pain in the neck to install Windows. Something you can try is practice it in a virtual machine using something like VirtualBox.
you should already have backups which will let you restore the system with everything you need. your post indicates you don't have one. what if some malware or hardware failure fucks it up or so? create a backup strategy that works for you. it will also give you the freedom to do experiments like this. best of luck.
Don't use "debloater" versions as that is a violation of the TOS and can create significant issues.
To install Windows just write it to a USB and then boot from the USB. Follow the on screen instructions from there
Why you trying to detransition?
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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