I agree with the advice given so far, and have a couple more ideas for you to consider.

1. Had you named your tables in the singular (Person, Community), your junction...

I don't think there's a way to hide it, so you might have to tolerate it. Or embark on a rewrite.

This is nothing to worry about. After deploying your package to a server, no one will be there to see the dialog box during execution.

Do you report all times in UTC instead? If not, what do you...

Why not create a separate dataset which runs that exact query for you?

Could it be that the 2022 box is using TLS 1.2+ and the others are using a lower (and now invalid) version?

Use environment variables to control the values of connection strings and other parameters which vary between environments.

Here is a link to get you started: https://www.mssqltips.com/sqlservertip/4810/setup-environment-variables-in-sql-server-integration-services/

OK, then consider putting all of your data into a single (wide) temp table, adding a 'GroupNo' column for each dataset. Filter on the GroupNo within SSRS to split out...

OK, then you have a detailed mapping exercise ahead of you, to work out exactly which data items go where and under what conditions.

Hopefully, the systems contain DateCreated and DateModified...

Are all the datasets coming from the same database?

OK, is it fair to assume that you cannot, or should not, modify the design of either of these two databases?

Is it one-way traffic (ie, from A to B but...

Are the databases on the same SQL Server instance?

Does the movement of data need to be instant, or is a lag acceptable?

Do you have any particular software tools in mind...

If your question is as simple as "can data be moved from one database to another in SQL Server?" the answer is yes and there are numerous ways of doing...

However, it's worth noting that FOR XML PATH has some advantages in specific cases, such as handling complex string concatenation, concatenating multiple data points, and managing special characters more...

As for SSIS, I really do not understand why some smart people believe it does better job than other methods, good old bulk insert for example. MS SQL never...