• 5 steps to faster web fonts /// Iain Bean
• How to Stop Lighthouse Complaining About Render Blocking Google Fonts | Codeboosh
• A Comprehensive Guide to Font Loading Strategies—zachleat.com
• How to avoid layout shifts caused by web fonts – Simon Hearne
• The Fastest Google Fonts – CSS Wizardry – Web Performance Optimisation
• Time to Say Goodbye to Google Fonts
• The Best Font Loading Strategies and How to Execute Them | CSS-Tricks

요약하자면

• woff2
• font-display로 레이아웃 이슈 최소화
• preload
• self (feat. google webfonts helper)

몇몇 권장사항은 한글 폰트에서는 사실상 불가능한 부분이라 가능한 부분들을 적용하면 된다.