No QFX or valid CSV output, unacceptable
Please restore either the ability to download a QFX export or make your CSV an actual valid CVS without having to delete the disclaimer rows which are injected into it.
It is really outrageous that Fidelity is not playing nice with any of the data partners anymore for example YNAB which uses MX as it's partner has not worked for a long time because Fidelity refuses to allow it.
However guess what? Fidelity's own partner Elan (the fidelity credit card) allows you to download your history in a QFX file without issue directly from the Fidelity website (it handshakes with Elan behind the scenes). If your partner will do it why won't you?
And yes, I am aware that you have "added it to the feature request list" (something which was offered for a decade before). It has been on there for a year or more and is not happening.