What you have accomplished is considerably higher than the industry average.
Still, there is room for improvement. Because I do "daily production releases" (my own apps and for clients), manual testing is very limited to a few minutes casual exploratory testing. All user stories are covered by Automated E2E UI test suite regression testing (Selenium + RSpec). It is possible when the team makes it highest priority and really embrace it, i.e. change anything for that.
You might know that I have worked 10+ years in Java and C# (with a press published book). I chose Ruby because it make developing/maintaining E2E tests much easier and fun. https://zhiminzhan.medium.com/why-ruby-is-the-best-scripting-language-for-end-to-end-test-automation-d1b014d8cb8c