Yeah Algeria has a history of reliance on Russia. So I believe they are more familiar with Russian systems than anything else. So they will like stick with Russian fighters in foreseeable future. Egypt could be a good market for China(only issue might be US objections.
It'll be better for Algeria to diversify some of their air force fleet, as the russians can't keep up with the recent development and will need some time to fix their issues -- if they could solve it. So China's air platforms & systems can provide more technology, capability and more insurance for Algeria, especially A2A capabilities with J-10C & KJ-500, let alone China's advances in enablers especially AEW&C unlike old russian aircraft. And concentrating a single engine fighter like J-10C in the northern frontier will be ideal for their case, and they have other russian aircrafts to deal with threats from other weaker opponents in other frontiers.
So I think Algeria is more than happy to have another options which can offer them advanced platforms & systems.
Egypt's problem is to secure the economical power to make a meaningful transition to improve their airforce, while their general economy to be in solid state to hold against US sanctions -- even with Egypt effort to guard itself, what they're doing is not enough.
Nevertheless, they're still working to fix their air force, it'll take time and will be in secret until big progression happen, and I don't rule out that they make a small buy even if they can check all the boxes because of the severity of their security right now.
And to be more precise in wording, Egypt doesn't care about US "objections" to the deal, but US retaliation & pressure, they can handle US talking and attacking them in the media, doing something in the UN...etc, but US sanctions with EU complicity can damage them very badly.