RDS Connection Broker High Availability

We're starting to plan for a fully available Windows Server 2025 RDS farm. We already have a SQL Server cluster on Linux Ubuntu in the environment. I couldn't find any Microsoft documentation stating whether a SQL Server cluster on Linux can be used. Does anyone have any official references on this topic?

Current SQL Server cluster environment:

2 SQL Server Standard 2022
Linux Ubuntu 22.04, Linux cluster (Pacemaker + Corosync)