Glass Mapper V5 for sitecore 9.2 breaking change SitecoreChildren Islazy is not lazy any more

    public partial interface ICategoryFolderEntity
    {
        /// 

        /// Gets list of category in this folder
        /// 
        [SitecoreChildren()]
        IEnumerable CategoryList { get; }
    }
public partial class CategoryFolderEntity : ICategoryFolderEntity
    {
        /// 

        /// Gets list of category in this folder
        /// 
        [SitecoreChildren]
        public virtual IEnumerable CategoryList { get; set; }
    }

No need of

[SitecoreChildren(IsLazy = false)]

Just  [SitecoreChildren]

And virtual IEnumerable CategoryList

Remember Virtual

Reference:

https://sitecore.stackexchange.com/questions/16530/after-upgrading-to-glass-mapper-5-unable-to-globally-enable-lazy-loading