It's got to be easiee for a larger company to agree to. What would you be inspired to make that doesn't compete with an existing product if you work at big tech? It feels like they have products in all spaces.
Large companies tend to have very conservative legal departments, and be less supportive of exceptions and more willing to just not hire someone who has requirements outside their perceived norm. The question would be whether the company has ever established an exception path, typically by having a high-level hiring manager insist and running it up the chain.
