For example, the Google Ads and e-commerce reports are still minimal and I also find the conversion attribution reports less. There are also other limitations, such as not being able to customize shared reports. And if you use utm tagging, keep in mind that at the time of writing, the utm parameters term and content are not reported in GA4.
This means that you cannot see in GA4 which values utm_term and utm_content have, so that you miss valuable insights. So start Telemarketing List collecting data in Google Analytics 4. And let this run parallel with Universal Analytics. In this way you already collect data in GA4 and you can ensure that you get as many of the same insights as.
Then you can get used to the new interface, as the differences are large. I assume that Google will adjust (read: improve) a lot in GA4 in the coming months. Stay informed of the developments, to determine for yourself when is the right time for you to make the definitive switch to GA4. Get started right away? July 1, 2023 sounds far away, but is closer than you think.