I don't know where "BlackApple", whoever (s)he is, get information, but In-N-Out's headquarters is in Irvine, CA. In-N-Out has not left California.
Similarly, Amgen Inc. has not left California. It did announce this year that it was expanding its existing facility in New Albany, OH, but it also announced plans to build a new research facility in Thousand Oaks, CA (where Amgen has its HQ).
Bed Bath & Beyond is bankrupt, and since its HQ was in Union, NJ, I do not know how "BlackApple" can claim BB&B is "fleeing" California.
BTW, I only factchecked the claims for 3 of the companies on that "fleeing California" list, and all 3 either are still HQed in CA or never were.
I already knew that HP Enterprise hadmoved its HQ from Silicon Valley, but that may have been part of the process of being spun off from HP. That said, HP Enterprise still has offices in Roseville, CA and San Jose, CA, so "fleeing" California is extreme hyperbole or simply false. HPE has 2 facilities in Texas, so HPE may yet have as many or more employees in California as it does in Texas.
ETA: Symantec is a bit complicated. Symantec had acquired Norton in 1990 and LifeLock in 2016. In 2019, Broadcom bought Symantec's Enterprise software division. Broadcom is HQed in Palo Alto, CA. The Norton products group moved to LifeLock's Tempe, AZ office. So part of Symantec is part of California-based Broadcom, while the Norton products group's move to Tempe was simple consolidation, not fleeing anything. Completing the Norton-LifeLock story, it merged with Avast in 2022 to form Gen Digital, whose HQ is in Prague.