Suggestion whether to install 0365 version of office or Office 2019 Professional Plus on the RDP server.

Hi 

Actually, I would like to install  Microsoft office on RDP server.
Will it be better to install the 0365 version of office or Office 2019 Professional Plus.
Multiple people will be remoting into the RDP server and if I install the 0365 version of the office, will it cause any licensing issue? If it is going to cause issues i thought of installing Office 2019 Professional Plus. 

I have downloaded Office 2019 Professional Plus ISO and mounted it to a CD drive of the VM.

When I open the CD drive I can see the setup.exe file.

When double click the setup.exe it says 

Choose a file location.

wacserver will be installed on your computer. To install this product in a different location, click Browse  and then select the location.

Browse location it gives: C:\Program Files\Microsoft Office Web Apps

Not sure how to install it, please can you post tutorials.

Please suggest whether to install 0365 version of office or Office 2019 Professional Plus on the RDP server..

Any help much appreciated.

Thanks in advance.