I would love to see this as well but I fear it’s is not easy to implement, since obsidian seems to use the print function of the chromium browser it is built on and redirects the output into a pdf.
Currently pandoc with crossref seems the only option to generate a pdf with working links. Unfortunately pandoc doesn’t support obsidian wikilinks. But there is a plugin (I think it is called link converter) to convert obsidian links into standard markdown links that can be handled by pandoc.
There are two plugins as far as I know that integrate pandoc into obsidian. One of these is obsidian-enhancing-export. But its not easy to setup a working pandoc environment. In particular you need also e latex environment since pandoc cannot translate markdown directly to pdf but first convert it to latex which is then converted to pdf using pdflatex or xelatex.
For those who dare there is a tutorial how to setup obsidian for academic writing which also covers pandoc and additional plugins
https://betterhumans.pub/obsidian-tutorial-for-academic-writing-87b038060522