I have an 8th gen LG Gram from 2018. I’ve been running Windows 10 since I got the laptop and been doing fine. This week though, without downloading anything suspect, my font changed. The only way I can describe the change is it looks like an improperly setup Linux distro, text being thinner and blocky from aliasing. There is nothing serious going on, it’s just blocky looking text. However I find it odd that it changed randomly. The only thing I’ve downloaded recently was Pokemon Showdown, and that’s literally just a locked down chrome instance, no I don’t mean electron. This also happened DAYS after I installed the program, so I don’t think it has anything to do with this.
Check your graphics drivers. Sounds like an issue with the GPU
Open ClearType Tuner and make sure it is enabled. I turn it off sometimes to prevent color artifacts in scaled screenshots but some font rendering gets messed up when I do (small text is not antialiased at all and kerning is all wrong)