Same here. I've tried moving my "boilerplate side project" .NET Framework template over to the latest and greatest about once a year over the past four years and every time I hit the eight hour mark, I give up. Either my dependencies aren't supported yet, or there's some wonky versioning incompatibility, or there's some other undocumented frustration. I'm not dealing with anything wildly complex here ~ just an n-tier architecture supporting MVC rendered views, forms authentication, API endpoints, an EF middle-tier, and Azure SQL. About as simple as it gets for a web app.
Has anyone here migrated from .NET framework > .NET core lately? Think it's time for me to give it another go?