It’s not CentOS 3, it’s CentOS with Linux kernel 3.10 (a 2014 kernel). This was supported in RHEL/CentOS through 2017.
Still very dated and a bad idea, of course. And even weirder that it’s on a new machine. I’ve seen tons of stores using Win7 past it’s EOL, but on older hardware.
If you want to pay for or pirate a font, there’s of course Albertus. The best free (OFL) font I’ve found with a similar look is Della Respira, only a single-style font:
I’m not sure how you plan on using a proportional font in the terminal, though.