There few ways to run Linux packages in Arch Linux,

Find the deb file packages in AUR repo is one way.

Sometimes we can't have those, you could try installing with packagename.tar.gz provided from the official website.

But, if you have only .deb files then you could try following commands to get it done.

yay -S debtap

sudo debtap -u

debtap techie.deb (package.deb)

Check the generate .pkg.tar.gz file in the working directory and run the below command

sudo pacman -U techie.pkg.tar.gz