How to confirm that Fedora 38 Chinese font matches GB18030-2022
Not familiar with Chinese fonts, but I know fedora includes
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GitHub - adobe-fonts/source-han-sans: Source Han Sans | 思源黑体 | 思源黑體 | 思源黑體 香港 | 源ノ角ゴシック | 본고딕, and
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GitHub - adobe-fonts/source-han-serif: Source Han Serif | 思源宋体 | 思源宋體 | 思源宋體 香港 | 源ノ明朝 | 본명조
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adobe-source-han-sans-cn-fonts - Fedora Packages (Simplified Chinese)
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adobe-source-han-sans-twhk-fonts - Fedora Packages (Traditional Chinese)