Hello @IsabellaG__13 - to troubleshoot, the first thing I would do is see if this happens in a different browser. If this image is from Chrome, then try Firefox. If it does not happen there, then I would first clear the cookies and cache in the original browser to see if that resolves the issue. Next up I suggest checking the web browser settings. For example, have you edited the browser font? I ask as the left menu looks unique and so the settings may be changed. The module title font appears to be set with fixed spacing - but as far as I am aware there isn't a setting in Canvas to create the effect of fixed spacing. Did your instructor do this by design?
Another thought - have you installed a browser extension recently that created this change? When I see something odd happening I turn off my browser extensions one at a time, refreshing he page each time, to see if one is somehow impacting what I am seeing on the screen.
Lastly - if other students see the same font and text being spread out, perhaps that is a setting put in place by the school. If I saw that I would assume it was done in error and I would ask the school Canvas admin to revert back. This is why I suggested one of your first steps to be to clear the cookies and cache.
It is likely something simple we've overlooked. If I were to bet, I'd go with a browser extension creating the issue.
Please share the resolution here. ;o)
Best, Jeff