It depends on your use case. I wouldn't use it for a JS-heavy site. But if you have simple static content, it's probably enough. It's worth testing it out as a standalone app before integrating it as a library.
It doesn't crash as often as it used to few years ago. JS heavy sites might not work, and layout issues too. And internet gatekeepers cloudflare turnstile doesn't work.
why did it crash? Rust is supposed to be memory safe?..
crashes happen for reasons besides memory safety. web-engines are crazy complicated pieces of software and crashes could happen for any number of reasons. also I would be shocked if this was written using purely safe rust