When I can’t buy it in a reasonable way lol
Simply wanting to save money is a valid enough reason to pirate. The only time you should have any second thoughts is if its a product you REALLY want to see more of or if its made by a smaller group that could really use that money.
Even then though, you can always help without spending money. Easiest way is to spread the word.
You enjoyed that game?
Tell others its a good game worth getting. In many cases, that might help more than buying the game and saying nothing about it.
I had a similar issue and honestly I would just recommend worrying about it later. Don’t force it, just try it when you have some free time.
I started off with dual boot to play with Linux and jump to windows when I need it. Then eventually to full Linux once I realized I never actually needed it to do all my work.
I recommend Linux mint as its the most similar to windows and is built for new Linux users. I tried Ubuntu first and the experience was pretty bad, but I learned much quicker in mint and had a much better experience right away.