Mewtwo

Thank you! I only opened the software once and didn't check settings. Enabled high DPI and it worked. Wondering why they doesn't enable it by default.

Saw this thread and instantly installed Spyder on my Windows PC. My display is 4k 15 inch with 250% scale. The fontsize of UI didn't scale and is too small. Well, like many other Windows apps that can't handle high DPI well, I'll check later when it's polished.