It's the second month since I bought the expiration domain.

After purchasing, we have completed the site production, and we are continuing to inject backlinks with feeddrops.
I've been working on it for two months now, and the expiration domain that worked on the low-difficulty keyword is starting to appear in the rankings.

But the expiration domain I've worked on in sports or casinos doesn't show any keywords in gsc yet.

Is it a question of duration? Is it a question of domain?

Currently, we are working on various things such as pbn, guest post posts, and Google news with feed drops.

Kinda' hard to tell but give it another month.

What is the domain RD and DR? You are most likely facing too much competition with too weak domain.

This may be due to the quality of the expired domain and competition of the keywords. You can target more long tail keywords and update more high quality articles. Also, check what the top competitors were doing and keep building the links from quality sites with diversified anchor profiles.