The real blocker is not the new tool
Most people who consider switching schedulers are not worried about learning a new interface. They are worried about the weeks of planning already sitting in the old one: a full calendar of drafts and scheduled posts they do not want to recreate by hand.
Check whether the new tool imports what you already have
Before switching, check whether the new tool can import a calendar export from your current one. Most schedulers can export to CSV, and a tool with a real CSV import (not just an upload button that only accepts its own format) brings your planned posts over as a starting point rather than a blank slate.
Expect drafts, not a perfect one-to-one migration
An import from a different tool's export format rarely maps perfectly. Column names differ, platform values are named differently, and a date format from one tool may not parse cleanly in another. A reasonable import handles the parts it can map with confidence and flags the rest for you to fix by hand, rather than silently guessing wrong or refusing the whole file over one mismatched row.
Reconnect your channels before your first scheduled post goes out
An imported calendar of posts is not the same as reconnected channels. Bringing your plan over is a separate step from authorizing the new tool to post on each platform. Reconnect every channel your imported posts target before their scheduled dates arrive, not after.