It definitely depends on your needs. FreeBSD absolutely does support production workloads. Netflix as you mentioned, WhatsApp (Meta), and several ISPs and hosting providers make use of it.
Any competent Linux sysadmin could learn to admin a BSD in no time. The FreeBSD handbook and the man pages are excellent. In my opinion they are far better quality than their Linux equivalents.
You also won't have any issues if your server runs on an open source stack such as Python, PHP, Perl, Ruby, Java (OpenJDK), NodeJS, etc.
You're absolutely right about FreeBSD not having first party commercial support. If you need that, you're basically stuck with RHEL, SUSE, Ubuntu, or Oracle.
Any competent Linux sysadmin could learn to admin a BSD in no time. The FreeBSD handbook and the man pages are excellent. In my opinion they are far better quality than their Linux equivalents.
You also won't have any issues if your server runs on an open source stack such as Python, PHP, Perl, Ruby, Java (OpenJDK), NodeJS, etc.
You're absolutely right about FreeBSD not having first party commercial support. If you need that, you're basically stuck with RHEL, SUSE, Ubuntu, or Oracle.