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Fixed this with help from suggestions by @jonrsharpe and @yoduh. Bottom line, moving from vue2 to vue3/vite and removed old lint modules.
This guide showed me which ones: https://vueschool.io/articles/vuejs-tutorials/how-to-migrate-from-vue-cli-to-vite/
Had I wished to remain in vue2, I would have needed to play more with lint module types and versions to format a proper, supported lint solution.
Source:stackexchange.com