Reproduction steps:
1. Open the attached project "Case_1324348"

Reproducible with: 2018.4.35f1, 2019.4.27f1, 2020.3.9f1, 2021.1.8f1, 2021.2.0a17

Notes:
- The behavior can differ depending on the number of files. Sometimes errors are thrown in the Console, sometimes the entire Editor UI breaks, sometimes the Editor opens only to cash immediately after. With enough files, the Editor always crashes as soon as you attempt to open it.
- Not reproducible on Windows
- Often crashes with this error:
"Shader compiler process initialization failed: Protocol error - failed to read magic number
Launching external process: /Applications/2021.2/Unity 2021.2.0a17_96ee4da88f82/Unity.app/Contents/Tools/UnityShaderCompiler
Launched and connected shader compiler UnityShaderCompiler after 0.00 seconds
No explicit failure code handling for error of type 22"