Zorin high usage wifi network data

I install zorin os to my parents they use laptop only for browser online shop, but in wifi statistic its 4GB RX and 1GB TX from 5 days, even router statistic is top of the list 200000 send data pocket wtf, my PC is 80000 but I all time use PC to Game and youtube , Can somone explain me this it is normal?

nethogs may be what you're looking for: 18 commands to monitor network bandwidth on Linux server – Technology Now