Here is the chipset, ram, rom information about the Totolink X2000R AX1500 v1 router. This mail was sent from the Totolink headquarter. I hope this will help to make openwrt firmware. if need any other information about this model, please let me know soon, as I might colleect further info on this from them.
https://www.totolink.net/home/menu/detail/menu_listtpl/techspecs/id/242/ids/34.html
it won't, AFAIK RTL8197H is still unsupported by Linux.