I had the Gigamax Meowth and the Galarian Meowth and they where moved to my bank. When I went back to check they were both gone. Do they just typically run away if you dont use them?
They should not run away from your PC Box.
This is likely because:
A: You Traded it
B: You Put it in a Box that You Ignored To Check
C: You Put them In The Daycare
D: Someone else Released it or Traded it from Your Switch Without Your Knowledge
No Pokemon Normally Runs Away From the PC.