Mutual funds in brokerage

I was reading a bunch of posts around the internet saying that mutual funds such as Fselx and Fsdax aren’t optimal to have in a brokerage account. I am pretty young and opened a brokerage account about a year ago and have some money (10k) in fxiax Fselx and Fsdax. Any advice? I opened the account for the flexibility.

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u/itschurr0 — 5 days ago