I'll preface this by saying I think the answer is probably a resounding "No", but I want to due my due diligence.
I'm 20+ years from retirement and already maximize my 401K and IRA (backdoor). All left over funds go into Fidelity Mutual Funds that I've had since I was a kid. As a result, I have high six figures split across multiple mutual funds.
Other than knowing to look for low expense ratios, I never truly understood the differences between Mutual Funds and ETFs until I was hit with a really high tax bill this year due to capital gains distribution in one of the funds.
I keep enough in savings that even though it sucked to send thousands to the government, it doesn't make a difference in my day-to-day.
That being said, it made me wonder if over the long-term I should be in ETFs instead of MFs to avoid this? I know selling the MFs would be a taxable event, so I'm wondering if there's any calculus I can do on what's the better option? I'm assuming it's too much money at this point to take (another) tax hit, but I also don't want to be in the position where paying a few grand in taxes each year for the next 20 years would substantially hamper my savings.