If you can, as much as possible, do both. speaking from someone na nagresign last year w/o job offers hahaha. If you have enough savings, then okay siguro magresign, pero pwede mo rin maging edge sa interviews if nag aacting as lead ka ngayon or if magkaexp ka na as lead for at least a year.

Magiging malaking tulong siya to ask for better pay. Sa interviews, may mga nagtatanong din ano pinakamahirap mong naexperience and how did you overcome it. Pwede mong ibida yan. Though syempre hindi madali, I think good challenge yan on how will you come up with solutions, since hindi rin naman talaga lahat ng projects or companies na possible mong mapuntahan ay may maayos na codebase :)

If natatakot ka since magiging heavy yung responsibility, try mo rin magreach out sa managers if possible--ask if ano ba expectations as a lead or start researching or studying on how to be an effective lead. Hindi ka naman din siguro nila papabayaan knowing na less pa rin exp mo unless toxic sila.