If you're starting from scratch and trying to pick a toolchain to build your next game with, there aren't many reasons to go with Ogre. Unity/Unreal will get you off the ground much faster, and the tooling is much better for sustained work.
On the other hand, if you're trying to build a C++ based game engine, Ogre isn't a bad place to start. However, you probably don't need your own game engine.
For context, I used Ogre for various things starting from ~2007 and stopped around 2015. By then Unity was the obvious choice if you were a 1-2 person shop and wanted to spend less time wrangling code and more time making stuff.
On the other hand, if you're trying to build a C++ based game engine, Ogre isn't a bad place to start. However, you probably don't need your own game engine.
For context, I used Ogre for various things starting from ~2007 and stopped around 2015. By then Unity was the obvious choice if you were a 1-2 person shop and wanted to spend less time wrangling code and more time making stuff.