Please see the screenshots.
Steps to Reproduce:
No borders around my images (I remember that Office on Windows XP showed my borders).
The same render as in Google Doc.
User Profile Reset: No
Created attachment 148697 [details]
Created attachment 148698 [details]
Render in LibreOffice
Created attachment 148699 [details]
Render in Google Doc
The same as in Microsoft Office - correct.
I think the reason is that the color of border is automatic, and on Libre Office is white and is not visibile... See the screenshot if I click on image and then on Line properties.
Build ID: 9bc10964f0673b64e282ad567d08bf7ebba4df65
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3;
TinderBox: Linux-rpm_deb-x86_64@86-TDF, Branch:master, Time: 2019-01-27_18:08:30
Locale: ro-RO (ro_RO.UTF-8); UI-Language: en-US
Created attachment 148702 [details]
properties for line
Line style is not selected and line color is automatic (white???).
And line width is seen as zero.
Build ID: f3153a8b245191196a4b6b9abd1d0da16eead600
Created attachment 148714 [details]
Microsoft Office online render
The "borders" do not belong to the image, but to the text field. The images exist separate and are placed as character in the paragraph of the text field.
If I change color, width and style of line I could obtain the original border, like Google Drive. But the question is why the border style change on opening with LO?
The original border is not a single stroke as rendered by Google, but has a thick and a thin line. Such kind is not available as line style but only as border style. And border styles do not exists for shapes but only for frames. With the current abilities of LibreOffice the same design as in the original doc is not possible.
You can get a frame with border and picture in it as in the original text field, but then you have no grouping. Or you use graphic objects with grouping, but have a 'wrong' border style.
But using no border at all, is surely a bug.
With the new feature "text box in shape" it would even be possible to get a distance between border and image as in original doc and so keep ratio and size at the same time.