Traditional 401k vs Roth 401k… I’m confused

I currently make a little over $100k per year and max out my 401k, HSA, and Roth IRA. I’m 44 years old currently and have about $400k in my retirement accounts and $300k in my IRA. I feel like I have a grasp on everything except for traditional 401k vs ROTH 401k, and my employer offers both. I’ve always contributed to the traditional 401k and assumed that is the right move. Is it the right move for me? I plan to work my current day job maybe another 10 - 15 years, soft retire into a “easier” job