Synamedia's target salary increases this year were 1.5% for US/UK, 2% for IL and 5% for IN. In a normal year these targets would be considered offensively low but with inflation rates being what they are this year it means you're making less money this year than you did last. Think about that. You're losing money to work in this toxic environment.
Jobs are plentiful. You can easily get a salary increase and won't have to put up with all this toxic behavior...so why are you still there?
Life is better on the other side. Take the time to update your CV and get your name out there. Stop thinking about it and just do it. You owe nothing to Synamedia. You'll be happy you did.