Making pixel-style map... but still so hard. Wonder how everyone can make maps so easily.
By the way, I finally made name of this planet; Voda, which means water in Russian and sounds like "Bada"(meaning sea in Korean).
I think lake chad would become endohendric basin or drain into benue river in nigeria (depending on its precipitation), and Great lakes would disappear(at least become much shallower than OTL), but Hudson bay would still exist.(much smaller, similar with OTL hudson bay) New Great Lakes might appear in China, Africa, Mexico, etc, if there's any glacial period. Though there's much highlands like Tibet, Iran, Great Rift, Mexico, Altiplano that will develop glacier, tropical ring current can stabilize its climate.(I don't know much about deepsea current that will affect climate significantly)We still have to worry a bit about the impact of ice and water; Chad is definitely a lake here, draining into the Congo (I think), while the North American Great Lakes, Hudson Bay, may not even exist. I think we'd get Chinese Great Lakes running off the Himalayas, in Szechuan and the Tarim Basin, a few other things.
I have a question of my own tho: What about Iran in Seapole? Where would some of it's endorheic basins drain? The thing is generally confusing to determine due to mountains. I think most of them would find a way into the Caspian
refer here: https://ahstat.wordpress.com/2014/01/11/watering-earth/