Ravpower WD009 help

Hi, before I pull the trigger and install (21.02.1) can someone please clarify a few things about openwrt on the Ravpower wd009….

Do all the ports work (USB & SD) as per the stock firmware?
Are new devices auto-mounted without the need for rebooting and configuring each drive/card inserted?
They are shareable I assume (smb) without further packages being installed?

Does the SD-> USB copy button work the same as the stock firmware?
Are the other buttons remapped?

Is there anything else I need to be aware of that could cause problems?