I fail to see why there are so many complaints about the graphics, when there were visual problems with Let's Go and Sword & Shield. They upscaled the DS graphics into 3D, similar to Link's Awakening, but for the latter, it worked surprisingly well. Sure, it wasn't on the same level as A Link between Worlds, but it was a great faithful remake, and the extra controls were a blessing
Let's Go was critisized for the "battle" system being like Go, and BDSP now uses Let's Go trainer battle's inferface. Yes, the overworld is chibi, but Sinnoh was bigger than Kanto, so they couldn't just use Let's Go's design without taking more time. Legends is basically what people want for an open-world Pokémon game, but let's face it, it doesn't look as lively and condensed as a regular Pokémon game, so they could push the graphics in exchange.
My concern here is the connectivity between BDSP, Let's Go and SwSh. I'd like to know if GameFreaks would just "bite the bullet" and make everything compatible, including adding the missing Gen 4 Pokémon in SwSh.