Short answer: yes.
There is evidence that the AX3000T device with the AN8855 switch was equipped with Foresee NAND chip.
There is evidence that the newest AX3000T device (1.0.84 firmware) was equipped with the MT7531 switch and ESMT NAND chip.
So, any combination is possible: one random switch and one random NAND flash chip. But currently, the most common config is the AN8855 switch that's typically paired with a Winbond NAND chip.
Yes, needs to be updated; or just wait until the next stable OpenWrt release 23.05.6, which will bring Winbond driver in the stable release. So, Winbond can be replaced with Foresee in the Wiki warning 
.