I've used LaTeX, online resume generators and Google Docs templates, but they were unfruitful. I've applied to 350 jobs and only got one screening recruiter call (then was ghosted). Despite having 2+ YoE and published research as well as having worked as a contractor for FAANG (I even made one loads of money in stock after they applied my recommendations)!
If you've applied 350 times with that kind of success, then it might time to revise your approach, your CV or both.
I've never found good leads with cold approaches. Even when getting contacted and receiving an offer, it was always low salaries on that method. What worked best was going to related events, talking to people hosting the booths, talk to presenters of topics where I'm an expert and this way get warm introductions.
Yeah, it's probably because I took a non-tech job (stock broker) for the health insurance. Also I went back to college after I quit my last FT cybersecurity job. I also used ApplyAll which may of messed up parsing my resume in Workday.
If you're into tech development nowadays, it goes a long to list a portfolio of things you've built. That goes a long way to tell an employer if you have the skills to build what they need.