Update linux-ubuntu.md (#35967)

docs/core/install/linux-ubuntu.md

@@ -11,7 +11,7 @@ ms.date: 05/24/2023
 This article describes how to install .NET on Ubuntu. The Microsoft package repository contains every version of .NET that is currently, or was previously, supported on Ubuntu. Starting with Ubuntu 22.04, some versions of .NET are available in the Ubuntu package feed. For more information about available versions, see the [Supported distributions](#supported-distributions) section.
 
 > [!WARNING]
-> It's recommended that you avoid using both the Microsoft and Ubuntu package repositories for .NET, as this leads to problems when apps try to resolve a specific version of .NET.
+> It's recommended that you choose a single repository to source .NET packages. Don't mix .NET packages from multiple package repositories, as this leads to problems when apps try to resolve a specific version of .NET.
 
 | Method | Pros | Cons |
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