Complex SVG Favicons will usually be larger in term of bytes than highly compressed PNG icons. We did an extensive study of Favicons served on the top 500 websites [1].
If you want to stick with the old-school PNG icons, we open-sourced `icopack` - our internal tool for efficient packing of individual PNGs into a highly-optimised ICO files [2].
If you want to stick with the old-school PNG icons, we open-sourced `icopack` - our internal tool for efficient packing of individual PNGs into a highly-optimised ICO files [2].
[1] https://optidash.ai/blog/optimizing-favicons-for-the-worlds-...
[2] https://github.com/optidash-ai/icopack