The elections would happen by default in October: https://en.wikipedia.org/wiki/2026_Israeli_legislative_elect...
The budget will likely be approved in parliament. Netanyahu has a solid majority and his partners are not interested in triggering elections. I'd be very surprised if that wasn't the case. Netanyahu survived many worse political crisis. I'll be happy to see him gone but he always pulls out some magic trick from his hat. The biggest factor will be whether the Arab parties will unite and actually get their people to go and vote. That they didn't in the last elections is how Bibi got to form the government again. Even if that happens this becomes tricky because you'll likely end up with a minority government.
90 days vs. October isn't that much of a difference either and a lot can change in 90 days.
Jesus, I had no idea that the Arab vote in Israel was so cruicial and that voter turn out is so low. Mid fifties for the 2022 election?
The Arab parties are potential "kingmakers" in the coalition arithmetic. In particular, it was Mansour Abbas that made the "change government" (Lapid-Bennett) and if there's any chance of unseating Bibi again it'll come down to him. And to my knowledge he hasn't ruled out joining Bibi either, if there's a deal to be made.
A lot also depends on whether the Arab parties run together in the coming elections or not.