The #1 problem of most clean code, or microservices, or other architectural patterns is taking a correct observation to a logical extreme.

Decomposition is good. Too much decomposition recreates complexity in the interactions.

Immutability is good. Immutability everywhere creates gymnastics with more mental load.

Extensibility is good. Extensible-everything is reduces usability.

Program isolation is good. Too much isolation melts your laptop into a Docker-shaped puddle.

Having the restraint to not apply your pet idea to everything under the sun is the mark of a mature programmer and indeed a mature person.