Linux packaging tools are bad and the people who make Linux packages generally don't do a very good job at it limited by tools and motivation.
So much linux software doesn't come with sane defaults out of the box, doesn't have an easy path to common desired configurations, and doesn't have reasonable documentation. PARTICULARLY for "open" software that has a paid hosted option.
I say this after decades of a career where a very large proportion of the frustration and "stupid work" I've had to do involved getting a piece of software to do something obvious.
Working with the BSDs is just delightful in how wanting to do something turns into something working with ease.
And otherwise, I don't know what software you're thinking of that is easier to deploy on BSD than on Linux.
To be blunt, the only reason this is a problem on Linux and not BSD is that no relevant software runs on BSD at all.