Mac os is not BSD,but unix like OS,basically Darwin.Also if u are gonna need Vulkan ,and as i know .nvidia doesn't support it on freebsd so only through opengl which is slow enough.About Intel and AMD not sure.
Looks like u not installed gnu-fonts or something like similar package name.Install firefox it will install it as dependency. After that open libre office again.
I am using both for enough long time,mutlidevice synchronization it's nightmare in xmpp,also usual xmpp isplaintext.So when u wanna use encryptions like omemo so far not always guaranteed that ur encryption key will be delivered to ur new device which u connected.Also u cannot control sessions.So if u would be hacked u would not be notified,and u don't have ability to kick out this dude session.But yes xmpp more light about resources and works faster for now.
Gog repacks usually work better than original games. ,what's ur videocard? Usually game not start in case if driver not installed or it's installed but it's too new for ur videocard it's related to proprietary driver of nvidia.
Meanwhile PortProton which did similar thing long time ago :)