Web and Electron could be good if you're willing to deal with Chromium Embedded Framework (CEF) directly, like Spotify desktop client does, it's fairly snappy and feels good. That would mean that UI is web based, but everything else is native, and there is FFI of sorts in between. Though it probably only makes sense for a company of >1000 people as at that scale issues like being able to hire specialists become more prominent (pool of web devs is simply larger than pool of Qt devs).

Qt is amazing, though only downside is near absence of ready-made 3rdparty widgets. Which limits the development speed quite a bit, while in other technologies you have an option to throw $$$ at the problem at get a widget of ok quality to solve your problem, there is very little of that available for Qt. So before venturing there I would recommend checking if built-in are covering everything you need, otherwise be prepared for a long road of making native-feeling widget that works with all platforms UI guidelines.

I would give .NET ecosystem a try, they cover both developer velocity (coding in Rider is amazing) and 3rdparty widgets (plenty available), albeit it's not _that_ crossplatform just yet, .NET MAUI is only getting ready for .NET 6, so there be dragons :)