Serum has an enormous third-party market. Unzip preset folders (usually .fxp or .serumpreset ) into: Documents/Xfer/Serum Presets/Presets/
Open your browser and navigate to the official Xfer Records website. Look for the "Shop" section or the direct "Serum" product page. serum vst plugin download
Not natively, but many users run it via Wine/Yabridge with varying success. For professional use, stick to Windows or macOS. Serum has an enormous third-party market