Give it another shot if you haven't recently. I was a hardcore Jupyter Lab user and PyCharm pulled me away with their recent updates. Same hotkeys, good integrated tool support.

The VS Code implementation of notebooks has too much vertical space for me.

I'll try then! Last I remember they had some weird variable loading policy: even under small cell executions there'd be noticable delay before variables got 'refreshed', even when lazy loading was configured. Maybe only a problem on my end though.