I think @Joseph-Fleetwood put it pretty well. Hybrids are a major improvement over digital pianos, but at the end of the day they are a compromise for people who would like an acoustic grand piano but live in an apartment, don't want to deal with piano maintenance, can't afford an acoustic grand, etc.
Context: I practiced on a P515 (digital) for years, then upgraded to a Yamaha N2 (hybrid), and get to perform on a variety of acoustic grand pianos (Steinway, Fazioli, Schimmel, Bösendorfer, Petrof) at local piano meetups.
The P515 is a nice little thing, but the technique for playing a digital piano is not the same, and that impacts your playing on an acoustic piano. The most noticeable adjustment is when playing soft/light — on a digital, you just press down, but less fast. This works very differently on a real piano action (the resistance of the key is nonlinear, there's escapement, etc.), so a lot of digital-only players have difficulty playing pp on an acoustic piano. Also, during certain fast passages (e.g. the LH octaves in Baba Yaga) I felt like the keys were recoiling against my fingers - this added additional strain to my hands (I speculate this is because of escapement, you don't have to move the full weight of the key the entire time on a real action).
I bought a used Yamaha N2 earlier this year. In many ways it is a major improvement over the digital — but also in some cases it highlights more starkly the deficiencies in my technique (e.g. fast repeated notes that were easier to get to sound on the P515). At the end of the day though it's so much better to practice on and makes me a better player when I play on an acoustic grand.
Compared to the acoustic grands I play on, I still don't love the touch on the N2. I'm not sure if it's because it uses a baby grand action (shorter sticks) or if I need to get it regulated but it's not as light and responsive as some of the concert grands I've played on — it feels like I'm working to play the piano instead of my fingers dancing weightlessly across the keys.
And this is just touch. There's no comparison obviously when it comes to sound production. Just as piped-in engine noises don't produce the same visceral sensation as a naturally aspirated flat-six, digital sound production on hybrid pianos is just a shallow facsimile. The sound will never make you cry tears of pain... but it'll also never make you cry tears of joy.