One should always seek expert advice. However, be aware that "financial advisors" are often simply salespeople with limited knowledge. They receive "commission" one way or another if one does not pay by the hour. That is why fiduciary rules were established.
I had the background to do it and took on the management of my own investments when I retired. I did a lot of research into the industry. I kept my last 401K because it was high quality and offered me a Stable Value Fund which I could not have access to otherwise in an IRA. The industry will invite people to roll over the 401K to an IRA to have more investment choices, but then one needs to hire a financial advisor. And that is where people must pay attention.