Support for cross-browser bookmark sync is vital for a beta product.
This is a very biased personal opinion. Orion is a beta product, meaning that it is in development. It does not at all mean that it would have all the features of a much older browser, such as the 14-year-old Google Chrome, or the 19-year-old Safari. Orion been in development for only months, and cannot compete with such a mature browser.
Clearly as a beta Orion is not ready for prime time so we have to revert to another browser on occasions.
This is indeed what many of the users do. Some may use Orion as their main browser, reverting to a different one when Orion is unable to handle it. Some may use Orion as a browser only for testing it, and use a different browser as their main one.
To me it appears that the Orion developers are doing everything possible not to support bookmarking extensions such as xbrowsersync or floccus.
There are 1,548 posts (excluding nofix) on this forum as of right now, 415 (next release + done) of which are done, as well as another 563 (planned + coming soon) which will be done soon. Orion has averaged 46 tasks done per release. At this current rate, it will take 34 releases to resolve all of them. They are focused on the more important issues. Also, they cannot spend time to individually support one of the thousands (maybe even millions) of Chrome and Firefox extensiosn that there exist. Instead, they work by slowly implementing the functions for the entire extensions API, allowing for complete support for all extensions
Upvoting is not where I intend to go. ... This is not a popularity contest - sometimes common sense must prevail.
It is perfectly fine if you disagree with the current strategy of how Orion prioritizes its issues–by popularity. It is not possible for the developers to comb through every issue, and individually fix the ones that a minority of the users think are very important. Instead, they use the ratings that the the users provide, giving them an indicator of the demand for the feature request. If you can provide a much better alternative strategy that does not require a large amount of time spent on the part of the developers, feel free to share if.
If you dislike Orion, or dislike anything about it, feel free to stop using it. No one is forcing anybody to use Orion. Being a beta tester for Orion is completely voluntary.