Hi @Damie,
You can fix these warnings by following the resolutions in this article: SharePoint Health Analyzer rules reference for SharePoint Server. Generally, these warnings are just suggestions for you to improve the farm and will not have a fatal impact on the farm. You can accept the default settings for each health rule, or you can change settings for a health rule by using Central Administration. For more details, please take a reference to this article: Configure SharePoint Health Analyzer rules in SharePoint Server.
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