Also what I like about C is that is has mature tooling, very portable with multiple implementations, and that is is very stable. I would not use a language for any serious project hat does not offer all this.

Honestly, I do not think that the problem is C is o big that one needs to jump ship. There are real issues, yes, but there are also plenty of good tools and strategies to deal with UB, it is not really an issue for me.

Zig isn't a language I mean. It's still full of footguns. It doesn't address fundamental reliability issues of C.