Hopefully your expenses aren't too bad through your company retirement plan. Mine are pretty high, and after several years of each $ invested, I lose the advantage of it being tax advantaged due to the expenses eating away at the investment, so in the long run, I can do better in an after-tax investment (after I've invested enough for the maximum company match in the work account). Fortunately, I'm near the final stretch and can increase my allocation these last 2 to 4 years of my working career. Then when I FIRE, I can move the funds to my Vanguard account with reasonable expenses while I'm still ahead. I'll lose the "year I turn 55" withdrawal option by moving those accounts out, but I can get by 4 years without needing those funds, and I'll save close to $10,000/yr by moving them out to a Vanguard IRA.
Another thing to keep in mind is that the traditional 401K withdrawals will count as ordinary income, so that could lead to more of your SS benefits being taxed or affect your eligibility for Obamacare subsidies when you FIRE. With Roth, withdrawals don't count as ordinary income, and with your non-retirement investments, only the gains/dividends count as income.
You may be a long way from FIRE or SS, but if you wait until then, it's too late to go back in time and make the change in how you invest.