While I'd love to use free tools, these really don't compare to the paid tools like the Affinity suite or Figma for example.

Especially in a professional setting as a designer, the tools I use are chosen to make my life easier and enable me to work more efficient, and these really don't yet. From what I see, they aren't build for this setting in mind and cannot keep up with paid tools that have significantly more of a financial backing.

The one open-source outlier for me is PenPot, but even they aren't there yet in my opinion, at least not for my needs (and preferences).

At least for inkscape, I do see it in the RHEL appstream repo.

A RHEL workstation license will provide basic OS support for it; if you crash it, they might wrangle with the project for you.