Another minor thing to think of: the 5600X/non-X are AM4, meaning that if you ever want to upgrade in the future, it'll be a bit more difficult (you'd have to replace your CPU, RAM, and mobo). If you don't plan to upgrade soon, then it's not really that big of an issue.

Basically, each mobo is grouped into generations lasting roughly 5 years or so for AMD (3 or so years for Intel). If you want to upgrade your cpu, you'd have to replace cpu and mobo at once, if your mobo is outdated.

Your mobo generation (AM4) just ended. Whether or not it's worthwhile to spend a bit more money to buy the newer mobo (AM5) really depends on how often you plan to upgrade your cpu. If you plan to upgrade frequently, like every 3 or so years, it may be more worthwhile to spend a bit more to buy the newest generation, so that when you do upgrade, you can reuse your mobo. If you don't plan to upgrade frequently (5 or longer years), then you should buy AM4, since by the time you want to upgrade, the newest generation will be outdated anyways and you'd have to buy a new mobo regardless of which generation you buy now

Futureproofing is a bit of a finicky topic and people have long debates over when or how you want to futureproof, so if this seems too complicated, it's perfectly fine to just ignore this. Your build is well-balanced and should work well. Just giving a bit of food for thought