I need a valid example or tutorial about creating an UserControl derived from ParentControlDesigner

[AlessandroMenchiniTmaxLab]

Hello everyone.
I would need some help with the following scenario: I am using windows forms with .net 8.0 and visual studio 2022 17.9.7, I would like to create a UserControl with internal controls and a workspace that behaves like a panel, that is, that allows "design-time" to add other controls inside the workspace of my UserControl.
I was unable to find a working example. The only resources I found on Microsoft documentation are related to the use of ParentControlDesigner, but even using this approach, I often see that the internal controls of my UserControl change size incorrectly at "design-time". (I have fixed them inside my UserControl using "Anchors").
I understand that I may not have developed my UserControl well, but, wanting to implement it in an appropriate way, I do not understand if there is a reference guide that covers these cases or examples.
Therefore, I have no choice but to ask for information here, hoping it is the appropriate channel.
Thank you all for any support.
Regards
Alessandro Menchini