Frank Paul SilyeWebKit might be coming to SailfishOS - https://forum.sailfishos.org/t/webkit-browser-for-sfos-safari-engine/27969/17?u=frankps
For now it is an experiment, but keyboard, copy and paste, zoom, ui integration is working. What missing is video/audio, sandboxing (Sailjail and engine) and hardware acceleration.
WebKit Browser for SFOS (Safari Engine)
Here is a video to show the current progress, I am running the WebKit engine inside the official Jolla browser Keyboard, copy and paste, zoom, ui integration is working. Missing : video/audio, sandboxing (Sailjail and engine) hardware acceleration. Still a lot of work to come, video is going to be tricky.