Google is depreciating Universal Analytics on July 1, 2023.
Wow, Google has called the bluff and announced that Analytics users have 15 months to switch to something else or get their GA4 house in order.
You can read the announcement here
https://blog.google/products/marketingplatform/analytics/prepare-for-future-with-google-analytics-4/?ck_subscriber_id=538088523
I recommend getting familiar with GA4 and the basic reports.
Take my 15-min tour of the GA4 Reports section: https://youtu.be/s8u6v-N8nao