1.是,形容词子句,后面隐藏的意思是you cannot get (the kind of freedom) from any job.2.这边that是连接词的用法,可上Merriam-Webster查that,conjunction用法里的2/a/(3)
https://i.imgur.com/shrCTo7.jpg(1)(2)(3)句型一样,(1)作目的、预期的结果(2)作原因(3)作为结果或其影响,此句算是(3)如You said that; It’s important that; The problem is that等等都可以拿来接完整的长句子