I'm Still not sure on what free companies are exactly. In theory it sounds just like an endgame linkshell just jazzed up a bit.

Will I be able to do stuff with people of different free companies for example run a dungeon with friends or will entry be restricted to free companies in which case how does the content finder work?

and then if I can enter a dungeon with friends of a different free company how is that really any different from linkshells. if all of this has been answered apologies. some links would be usefull as i haven't seen much information on free company mechanics.

My hope is that free companies won't interfere with me playing with my friends who may be in a different company.

and then what if a party that has 4 people from free company a and 4 from free compnay b stumble accross a roaming primal?