If you're handy with code (I’m not), I’ve seen snippets floating around to set min qty via functions.php, but honestly... plugin’s just quicker and less stress. One less thing to break during updates.
one typo and boom, white screen
There are staging plugins that let you play with a test site. Then when you are happy you press the magic button and it goes live.Woocommerce is a world of which I know nothing
but presumably you can experiment on your test site, not your live site
even on your home machine, if you can live with a bit of uploading and downloading