First order methods like PDLP tend to warm start much better than interior point. I'm confident Applegate (of Concorde fame, and who worked on huge MIPs at Goog

First order methods like PDLP tend to warm start much better than interior point. I'm confident Applegate (of Concorde fame, and who worked on huge MIPs at Google when I was there) is thinking about integration in MIP solvers.