Focus on your professional network. Most of your jobs should be coming from referrals from coworkers, not cold-calls on a jobs board. This is the only way to continuously get hired regardless of the job market, and is very important as you get older (again: ageism is real).
Personal projects count for a lot for a software developer. Make sure you have at least a couple small projects that you maintain regularly. Contributing to open source is nice, but unless you're a major contributor, it isn't a big factor the way owning a project is. Make it really shiny: good docs, clean code, linting, testing, CI/CD. Using the latest tech is encouraging.
You're applying during a time when hundreds of thousands have been layed off at the beginning of an economic recession. It's gonna be hard for anyone but the most qualified candidates to land a job now. Just look for the jobs you're a shoe-in for, get employed, wait for a better role.