“Easier” depends a lot on the project in my experience. For example if you need a tableview/datagrid as performant and feature rich as NSTableView on Swift/AppKit, you’re probably going to have to build it yourself with React (of any flavor) and especially Flutter (which has a heavy mobile bent to it) or at minimum settle for a community library that’s got big holes in its functionality.

There’s also the whole third party dependency mess referenced in an earlier post, which is unavoidable with both — anything more involved than “hello world” is going to have a mile long list due to how barebones the frameworks themselves are.