I use keepass2 at work on a PC/windows and KeepassXC on my home computers (Mac and Linux). The only thing that make me still liking Keepass2 more is its compatibility with plugins. I can't wait for keepassXC to support them.
If you need external functionality that is not available in KeePassXC, you can try to bolt it on via the KeePassXC-Browser API or open a feature request (or even better: pull request) to get it into the core application.