is there a way to play ffxiv on pc without buying game again?

[Avenger]

I eventually ended up purchasing heavensward separately on PC and Mac and PS3 - even though I had it on PS4, and even though I have a single Mac that I boot into macOS and Windows. Without the platform-specific expansion license I couldn't even log in if I had logged out in Ishgard!

In contrast, FFXI used a single expansion registration which unlocked the expansion on all platforms. I wish SE would switch to that system for FFXIV as well - it would be much nicer for multiplatform players!