You show the screenshot that does show the indicator. Do you mean that is what you actually see - and then your question is unclear; or do you use the screenshot from some external place, just to show what you want to see (and what is not actually shown on your system)?
Did you press Enter and place the cursor in the input line?
For me, everything is displayed as it should.
With me:
Version: 7.3.3.2 (x64) / LibreOffice Community
Build ID: d1d0ea68f081ee2800a922cac8f79445e4603348
CPU threads: 8; OS: Windows 10.0 Build 19044; UI render: Skia/Raster; VCL: win
Locale: en-GB (de_DE); UI: en-GB
Calc: CL
In LO Calc, AFAIK, the rows x columns count shows only on the status bar, not as a floating indicator.
The status bar is on the bottom border of the window, below the sheet tabs. If you don’t see it, toggle viewing by menu item View - Status bar.
There is such an indicator in Calc.
But possibly there’s some difference in integrations - where e.g. Windows integration shows tooltips, while some other - say, gtk3 - doesn’t by default?
On Windows 10, I tried to activate tool tips, and other settings, but couldn’t make the indicator show. Maybe I was too impatient 
Thanks, @mikekaganski
Note that the tooltip shows when you select an area as part of a formula, i.e. after =. It doesn’t show up when you simply select something on the sheet.
Maybe OP’s question is something like “I see the indicator when creating formulas; how to show it when I simply select”, or something along the line?
sorry for the late reply, the issue is that floating indicator is not showing anymore when you select something while creating a formula, for example i need to see the number of rows x columns while selecting the array
thats exactly what i need to have, how do i enable it?
this works during normal selection, it does not show the rows x columns when in a formula, like selecting the array
Please don’t create multiple comments in a row when you want to add information, edit your posted comment instead if your level already allows to do so, click the … three dots and then the pencil. Thanks.
Anyhow, seems everyone but you sees the indicator when selecting a range within a formula. Maybe try starting in safe-mode and see if that changes anything.
I tried to reconstruct which comment is to which one, but not sure…
Im sorry, i thought i was replying to each of the comments in the thread, anyways the sample screenshot is what i need to achieve but not sure how I could reenable it, thats what im trying to figure out with your help