I'm working in a new form adding some textboxes and numeric boxes and I just see that both have different sizes, by default in .NET8 I tested this in .NET 6 and this problem doesn't appear, both have the same size.
Is this a bug or I'm doing something wrong? what's the best way to avoid this? I don't want to change all the properties (height, wiht, etc.) in all the boxes
Not sure what can cause this - definitely our components UI are the same no matter the .NET version. Check what styles are applied using your browser element inspector - you might have some global styles messing with our themes.