Would probably be great for like, text adventures, visual novels, turn based strategy games, etc.

But lcd screens are so cheap I don't even know what the advantage of an e-ink screen would be for this. I was just misremembering what the niche part of the playdate screen was.

Edit: And just to continue the nerdier part of the conversation, the dmg-01's refresh rate was indeed ~60, but it's pixel response time was so bad it really made it feel way slower. I remember when the GBC came out how amazed I was at how clear the games looked. dmg-01 felt like a tiger handheld a lot of the time.