If you aren’t going to diagnose probable issues that would stem from NOT installing a software’s optional dependency package ,which might NOT be so optional for your use case , consider using a GUI package installer which will list out the optional packages during a install and pause the install until any/no option is selected , depending on your use case , you may/may not install it
. My favourite is Bauh as it is simple , looks good and works good with pacman and easy to use. Although I really prefer the terminal .
Also to have a beautiful boot ui to choose between linux and windows , consider rEFInd boot manager , but during installation of Endeavour OS , you must choose GRUB as your bootloader to use refind easily out of the box.
Should you run into theming issues(I hope you don’t ) with rEFInd similar to these below , consider this thread:
Should you need any assistance in the above issue (if it arises) feel free to reply to me via the thread or personal message . I would be welcome to help you.