Instead, Everything is either an “enhancement” or a “defect” broken down into the smallest deployable chunk. These can have themes (epics), labels, and dependencies.
Prioritize in consultation with the business, but don’t plan more than a few months ahead.
This actually seems to be working for us in SaaS product management, infrastructure management, even managing packaged internal-facing “crapplications” like financials.
The budgeting, funding, and measurement practices surrounding “projects” is so broken in most orgs that you almost have to do this.