Hello Metamate! I have worked at a pretty wide variety of employers (from government to manufacturing to startups) so I think I can say that the grass definitely isn't necessarily greener.

If you can find a small team that is working on something cool that may be fun but at least for me I've seen an absurd amount BS while working in consumer robotics. I had a ton of fun but I was extremely underpaid.

My recommendation is try to take your time and find a new team at Meta. A change of pace would probably help you out! If you've been a good performer then it shouldn't be hard. This would be much easier than interviewing and less career risk. There is lots of really interesting work in AR/VR which is pretty unique.

The good news is you have tons of options, and if you did nothing but stay at your current role you will do pretty great!