Google rolls out an import tool for migrating your goals from Universal Analytics 3 to Google Analytics 4
https://www.seroundtable.comGoogle has rolled out an import tool for migrating your goals from Universal Analytics 3 to Google Analytics 4 for conversion tracking purposes. The goals migration tool allows you to quickly recreate eligible goals from your connected Universal Analytics property as conversion events in your Google Analytics 4 property.
Think will try and get all goals from the entire linked property (so all your views, even staging/sandbox ones), so you’ll need to pay close attention if you use this.
There is a lot you need to learn about this tool before using it, so make sure to check out the help document. More so if you use Google Tag Manager, there is a completely different way of doing this with GTM.