Thread:Brandsert/@comment-6697950-20190320121701/@comment-6697950-20190321201158

https://swordartonline.fandom.com/wiki/File:Eugeo_standing_at_Deusolbert_defeat_-_S3E14.png

The file you uploaded to the wiki itself clearly says "1,364 × 768 pixels", so you definitely didn't use the built-in screenshot function and instead made a manual screenshot, which means the screenshot is only as big as your screen, not as big as the video itself is made.