Cross browser E2E testing - worth it? I need experienced opinion

I need someones experience view on our situation with E2E testing:

• We have rating site, where you can leave reviews etc.
• Browsers statistic for our site: Chrome 83 % Safari 10%
• We have sentry so we can catch errors after
• I have good experience with puppeteer, but other E2E tools will be new for me
• E2E test should test app logic and in theory it should be the same on all browsers.
• But safari has quite a few differences (like this). And it may throw error where Chrome would not.

Main Question is: Is it wort test our site cross browser?

Other questions:

1. Maybe there is just list of such safari "features" and I just need to be aware of them and I may test only chrome?
2. How more time consuming it will be to write tests with something like selenium for 2 browsers rather than puppeteer 1 browser?
3. How more time actual tests will consume (when you run tests)? Selenium vs puppeteer

Note:

This question is more because there is too much information rather then there is too little of it.