@TimLangner - As long as you are running a supported SQL Server version for ArcGIS Pro 3.2 then you shall be able to connect to an older version of the ArcSDE Geodatabase like 10.6.1.
FAQ: What SQL Server Database Versions Are Supported by ArcGIS Enterprise and ArcGIS Pro? (esri.com)
ArcGIS 11.2 and ArcGIS Pro 3.2 requirements for Microsoft SQL Server—ArcGIS Enterprise | Documentati...
Microsoft SQL Server database requirements for ArcGIS 10.8.x and ArcGIS Pro 2.5, 2.6, and 2.7—System...
Important Note:
Client and geodatabase compatibility—ArcGIS Pro | Documentation
"You do not have to keep your geodatabase and ArcGIS clients at the same release, but it is recommended that you do so. Geodatabases and client software are designed to work together, and if you let one get too many releases away from the other, you risk encountering problems or unexpected behavior."
"This is especially true when you use a mix of client versions at your site. A newer client can create newer dataset types in the geodatabase that older clients cannot access. For enterprise geodatabases, waiting too long between geodatabase upgrades may mean you have to upgrade the underlying database more than once before you can upgrade the geodatabase."
For more best practices.
Mapping and Charting Solutions (MCS) Enterprise Da... - Esri Community
How Load Large Featureclass SQL Server Geodatabase
How to Move the SQL Server Enterprise Geodatabase with a database backup
How to Install Database Clients for ArcGIS
How to Install the SQL Server Client for ArcGIS?
I hope this helps.
| Marcelo Marques | Principal Product Engineer | Esri |
| Cloud & Database Administrator | OCP - Oracle Certified Professional |
I work with Enterprise Geodatabases since 1997.
“ I do not fear computers. I fear the lack of them." Isaac Isimov