Fully agree with you. I am a frontend developer. On my work machine spotify uses maybe 300mb of memory, but on my home pc with opensuse? Image what it uses... 1.1GB.. The same as my brave browser with 4 tabs open. What is going on.
As to what its doing with all those extra resources on your linux box... shrug maybe using your laptop to train its models or mine crypto?
Built natively, the same app could use an order of magnitude less memory, while being functionally identical.