I wrote about the brand new Nexus mods app before, as it's quite a promising and exciting development for the future of modding (especially for Linux and Steam Deck). And now, they want your feedback.
Yesterday, July 1st, they announced the Alpha release of this next-generation mod manager and their new Product Manager got in touch to mention they “would be really keen to get feedback from Linux users”. So this is your chance to ensure Linux (and Steam Deck) finally become a first-class citizen for game modding.
Worst case scenario you could just bind mount the nonstandard steam directory into the usual place