About Lazarus:
Yes it has tons of features. And many of them you may not need, but you will never get to see them either.
Many of those features will only be notable to you, if you actually look for them.
Some things I can see....
The Lazarus menus have lots of entries. That is something you will be exposed too.
I do not know, never tried myself, but if memory serves there is a package EducationLaz (or similar), that does reduce the menu clutter. It would be a one time task to install it.
I can not advice if it really is useful to you. Maybe someone else knows.
The other issue, where you get into "all the features" is the option dialog. But you probably can avoid going there at all. And if you have to go there, it has a search box.
All else, should be fine.
You get out of the box, an source code editor, a GUI form designer, and GUI elements to place there. Nothing excessive in all of that.
You can ran the App you create pressing F9, and if anything goes wrong the debugger will pop up. (and more debugger access is under menu View > Debug Windows).
And that is really all you need in order to start.