Battlefield started as a PC only game, and that's where the fans have mainly been since then. Starting with Battlefield 4, that started to change, as the PC version of the game was in such a bad shape at launch, and now it seems like this trend has continued, if Battlefield 1 is anything to go by.
The data collected by BF1stats.com revealed that during the last 24 hours there have been 145,384 players on PC, compared to 328,525 on PlayStation 4 and Xbox One at 241,078. That means only 25% of the players during this time were found on the format that started it all, and this is likely representative of the actual sales.
What format are you playing Battlefield 1 on, and are you afraid this might get consequences for PC further down the line?