What page type did you use? HTML? BBC?
I created a test HTML and BBC article and in these two types it's the same with this image thumbnail on the home page.
Go to the portal settings, set "Number of columns for displaying articles" to "2 columns". Other things (width, height, etc) can be changed via HTML/CSS by creating your own template layout for the front page.
I have 2 columns set up, but in my opinion the article window is too high and wide. This is just my opinion, but I think that Nibogo on his portal used a good article window size. And the user's avatar is displayed, in my opinion, this diversifies the appearance of the article window. Maybe you like the current look of the article window in LP and I understand it, but maybe you will improve it someday. I would like to try to set it the same. How do I add my own HTML/CSS template for the home page for the article window?
Of course, it is a simple block with HTML/Markdown content within the Top Center/Header panels.
Thanks for the tip.
Currently, when I save any setting, e.g. in block editing, I am automatically moved to the main block management. It is annoying that every time I save a setting, it move me from the setting to the previous page. Have you thought to change it?