Misleading take. TBH even if you're only half-joking, then you have probably misunderstood the philosophy of Kotlin Multiplatform.
The right-hand side picture is closer to what KMP is intended to be: shareable code that interfaces with the existing toolchains of each platform-specific ecosystem, providing access to the 'best of breed' from each architectural layer in the process.
If you're looking for a turn-key, write-once, common-denominator solution, go for React Native or Flutter. Kotlin Multiplatform was never supposed to be that.