I bootstrapped a Ionic project the other day and had something running right after without knowing anything about it some hours before, compiling as a pwa and native apps using their respective toolchain.
It felt like I was replacing Bootstrap components with Ionic's and was able to transfer all my Vue knowledge.
Also the docs are great nowadays, way less Angular centric than before.
Flutter's overall DX experience is so incredible that it is in its own league. But the ecosystem is still pretty limited, there are performance issues as well.
Web (HTML, CSS, JS) has been so optimised over the past two decades and it has such a HUGE ecosystem and libraries that it becomes almost unavoidable choice if coupled with Capacitor et.el.
Imagine d3.js or some of the amazing visualisation libraries. Hard to get the same deal on ReactNative or Flutter with same breadth and robustness.
You can already switch to it by adding this flag, "--enable-impeller". It's waaay smoother and worth giving a shot, their demo on YT is highly suggested.