Even your web browser is a decent PDF reader. Also LibreOffice Draw shows PDF pretty well and you can also edit it to some extent.

Try onlyoffice and slowly try to shift to libreoffice with open document formats. Or just skip that part and move everyone to the web versions of office. Also if you guys are on office 2010, the last time I ran it via wine, it worked completely fine.

Until Linux Phones get good, we are seeing a very rough sail ahead. Or just hard fork Android ig if it’s a logical option.