As with Power Automate housekeeping, good Power Platform solution hygiene means being intentional with design. Keep the managed and unmanaged solutions as lite as possible, and work to reduce the amount of unnecessary project assets.
Larger Power Platform solutions can bundle dozens of different assets, as well as dozens of each asset type. For example, packaging 100+ Choices. Are any of these options no longer needed?
The same holds true for other solution assets, like environment variables and connection references. Added benefit to keeping solutions lite, maintenance becomes easier. Legacy assets like extraneous tables, flows, and apps makes supporting the solution more complicated than it should be, especially if documentation is lacking. Don’t give them avoidable dead ends to chase down.

Conclusion:
Where possible, keep only the truly necessary project assets. This improves maintenance by purging the fluff, and not bloating the project. That results in needless overhead and avoidable asset sprawl.
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