The term used “regime change” while accurate is not commonly used in this context. No one considered Biden beating Trump to be regime change. That term is usually referred when a democracy becomes a dictatorship for example
The term "regime change" is often used in the context of a forced change in the governmental apparatus of a country (especially by meddling from outside forces).
Asking Netanyahu isn’t forcing a change of apparatus. Israel would continue to be a parliamentary democracy with free elections (I use the terms democracy and free lightly here)
If Biden demanded Rishi Sunak resign, no one would consider that regime change. At least when that term is traditionally used
When Biden urged Liz Truss to go with her proposed economic package, he was essentially asking her to resign since such a colossal failure of your key platform idea made her continued premiership impossible