Yes true. I found this course very interesting and helped me a lot: https://aantonop.com/workshops/crypto-inheritance-planning/

I think starting with the most simple solution first is important. Write everything down in simple and plain terms without very little jargon so that your spouse can access your bitcoin. Also adding links to people they can use for help. E.g. BTC Sessions, Ministry of Nodes and more can be added. They can contact them for help so they don't make any mistakes.