Clarify effects of upgrading

docs/docs/releases/0.2.0.md

@@ -454,7 +454,15 @@ The following PRs represent work done to reduce technical debt, update dependenc
 
 ## Upgrading to 0.2.0 {:#upgrading}
 
-We do not fully support upgrading from previous versions to `0.2.0`. In particular, you will lose any Explorations and User accounts (e.g., usernames and passwords) you created in Mathesar during the process. Furthermore, manual steps are required.
+Upgrading to version 0.2.0 will:
+
+- **Remove** out your [user](../user-guide/users.md) accounts, passwords, [explorations](../user-guide/data-explorer.md), and [metadata](../user-guide/metadata.md). You will need to recreate these after the upgrade.
+- **Keep** your databases and the data within them.
+
+!!! question "Should I upgrade or reinstall?"
+    - If any of your connected databases reside inside Mathesar's internal database server, then you will need to perform the upgrade steps below or export your data (e.g. via `pg_dump`) and reinstall Mathesar.
+
+    - If all of your connected databases reside in PostgreSQL servers _outside_ the Mathesar's Docker containers, then the quickest way for you to get to 0.2.0 is to reinstall Mathesar and reconnect your databases.
 
 ### For installations using Docker Compose