The only thing that keeps me on a Magic Keyboard is that it can be used in the lap. If my MK goes south, the ESR case eventually looks like a good replacement for me since it works similarly but also lets you rotate the iPad, which is handy for some uses, holds the iPad in a higher position, and has a function key row.
Are there no good true clamshell cases anymore? The Brydge keyboard case gets mixed reviews, and the one I would need for my M1 iPad Pro is not sold anymore, though some are available through third-party sellers.