I think what we is called “professionalism” rather than “loyalty” - they pay us for my time and it’s a questions of professional pride and moral obligation that we am there doing the work for them, in a reasonable way, and that’s it.

They might decorate it with “we appreciate your work” hypocrisy and bullshit, but they treat it as a “supplier” business transaction hence I’ll treat it as a business transaction, which does mean what’s in the contract is what’s in the contract and if I find a better client, I’m off.

After less than a decade as an “employee” I actually became a freelancer and it has served me well and I never regretted it, even though I was in the middle of each of the industries worse hit by the last to major crashes, first Tech and after that Finance. Job security is an illusion, so you have to build your own security by making sure you’re well paid for your work and hence can fall back on your savings even when they whole Economy plunges and eve the few genuinelly good companies to work for still end up firing most of their people.