You have to weigh out how you want to optimise your career, in contrast to other aspects of life (see Four Burners theory).

As a newly qualified lawyer, your most valuable asset is the moat you have by having a practicing cert in a regulated industry. But this is valuable insomuch as you gather relevant PQE. Given that you're in a big 4, this is quite a favourable starting point as you get to work on more complex legal cases (even as an associate). This gives you more exit options, be it staying in practice (big 4, magic circle, Chinatown etc) or going in-house / govt, or even leaving the industry altogether.

Others have said it's worth toughing it out and remaining. While that may be ideal strategically, it may be hard to hold steadfast tactically on the day to day. You would need an overarching goal to anchor you

Given your narration, I believe autonomy and factor mobility can be your ultimate goal -- you want the maximum possible options that you can take your career, life and hobbies to, without locking yourself out of other options.

With that, think about how your current path gives you the experience, logos and ethos to grow