We need both work and rest, and typically burnout comes from pushing yourself in situations that are a net negative; either because you are over working in an environment that is compromising something valueable to you or because you don’t actually know how to rest.

We need work to make a living, make incremental and long-term growth and to stretch our capacity at a healthy rate.

We need proper rest (not Netflix, not social media, not mind numbing hobbies), active intentional rest to appreciate our work and the things we have. We need time to value things other than work because work alone is not enough to sustain us.

There are many good books on this I suggest the OP look into reading one in the time they have off if they chose. Fixing the underlying issues and habits is the way forward not just switching jobs.

1. Subversive Sabbath by A.J. Swoboda

2. Garden City by John Mark Comer

* caveat they are both frameworked in Christian principles but the practical steps to get rest are still very good.

Not that in ancient societies was any better, your place in society was practically decided at conception: your father was a fishermen, well you know exactly what you will be doing in your life, that you like it or not. Almost all the disorders typical of this new millennium seem to originate from an infinite liberty without a guid, a paralysis analysis of some kind if you like. "What will I do with my life?" was not a question that pestered my ancestor (I come from a country where, untill my father's generation, all jobs were de facto hereditary). "What is the purpose of my existence?" was a question with answers in the local religions. I hope that, in building the future, we will use something like the fichtean dialectics (wrongly attributed to Hegel):

thesis --> antithesis --> synthesis,

and that wi will be able to take back all things positive present in our traditions and assimilate in a modern vision of the world: it is evident that, taken in isolation, both visions of the world had negative aspects that greatly surpass their benefits.

With the difference that modern society is 10000x wealthier, and yet people are overworked and the planet is being destroyed.

You're not wrong. I only went into this line of work because I was naturally good at it. It seemed like I was just naturally destined to do this with my life.