TLDR: standing all day long can be worse than sitting, but alternating standing and sitting positions is very good for your health.
Standing desks have never been promoting standing all day imo, the title is pure clickbait. Standing desks are good for your health, just use them correctly.
Same, I played 8 hours in two work days (this is huge for me who usually plays 8 hours a month). This game is addictive as hell