We have a customer who serves hundreds of online documents to both the public and a very large domestic network of 1099 employees. About half are considered part of the "online intranet" and yes things open in new tabs.
Ubuntu 11.04 saw Unity as a default thing but I was still dual-booting (mea culpa) back then. Around 2013 Pithos really got going and I think it might have pushed me over the edge. There’s hope for you too!