I'm not the OP, but that QTWEBENGINE_CHROMIUM_FLAGS trick works for me.
- bug#52993: There is a problem with text rendering in the an... Igor Gajsin
- bug#52993: There is a problem with text rendering in t... Florian Bruhin
- bug#52993: There is a problem with text rendering in t... Natalie
- bug#52993: Acknowledgement (There is a problem with te... Igor Gajsin