I would say unless you are engaging in riskier computer activities, i.e. "Acquiring" copyrighted media through "unofficial" sources, carrying out l33t h4ckz0rs or regularly browsing more esoteric or shady websites, the built in Windows Defender is more than enough.
If you do want extra protection, I am currently using BitDefender and it is working well.
Thanks - am I safe to assume that given you use BitDefender you engage in those "riskier" computer activities you refer to? 🤣