Sorry, what qmk portal?
Do you mean QMK toolbox?
docs.qmk.fm/#/newbs_flashing?id=flashing-your-keyboard-with-qmk-toolbox
I’ve never even looked at that since I’m on Linux.
It looks like it’s just to help with other chips that aren’t as easy as the RP2040 which is used in Framework’s keyboards. It even mentions
QMK Toolbox is not necessary for flashing RP2040 devices.
I have how to flash your firmware in my guide here Custom QMK firmware? - #14 by MJ1