The download size itself is almost 150 MB on Windows and after installation[and first run, when it has done no flashing yet], it takes 450 MB of disk space. Can you please tell us why you need 450 MB of disk space for? The linux distro I was trying to flash [Slax] was smaller in size, oh, which your software couldn’t flash. Isn’t Etcher just a fancy GUI for the Linux dd tool? Rufus on Windows is <2MB in portable form. That makes your software 200 times more bloated.
Etcher may have added additional features or functionalities over time to cater to a broader user base. While these features can be useful to some users, they may make the application feel more complex to others.