Hello @cmdc_business. I’m sorry you’re having trouble. I’m not sure, but it looks like the error is related to the strapi-stripe plugin. This is a 3rd party plugin. Do you know if it was already updated to work with Strapi v4.3.0?
By the way, if there is no migration guide for a minor version (4.x) it’s because it does not introduce breaking changes (as mentioned at the top of our Migration Guides page). In that case you should follow the Update Strapi guide.
If the issue persists, I’d encourage you to check the GitHub issues on the strapi/strapi repo and create a new one if necessary, so our Support team can help you. 
Is there something else I can help you with regarding the TypeScript or Media Library documentation? 