Related questions sort of - how optimal is the MBT 120 mm for the various types of combat the IDF can anticipate
Right now, the 120mm is great. Not only for the IDF but entirety of NATO.
And I do want to remind that Israel and NATO have very close considerations for this question.
If new T-90M and T-14 are likely to appear in eastern Europe, then T-90M are also highly likely to appear in the middle east.
The T-14 also has a fairly high chance of making an appearance in the middle east once it hits critical numbers in Europe.
That's why Israel may cooperate with the Franco-German EMBT project and the US's NGCV project, in efforts to determine the next gun.
against tank I cannot imagine a problem but for urban renewal ... how many building with crappy walls will a round go through