The bottom line
Docebo's strength is breadth and enterprise process: a wide suite, deep configurability, and the services around a large rollout. That comes with an enterprise buying cycle and enterprise pricing.
Telescopic is deliberately the other shape. It does the parts almost every organization needs, sells them per seat online, and gets out of the way — no procurement cycle, no implementation project, no platform to run.
If you need an enterprise suite with a dedicated L&D team behind it, Docebo fits. If you want a branded academy live this week with content you can import and export on open standards, Telescopic gets you there faster and cheaper.