Measure your safety by workload and work difficulty. When a leader tells you to feel safe but does the opposite to give you more difficult work with tight deadline, you know you may be targeted as potential layoff target. That does not mean you have done anything wrong. Typically age 55+ employees with more PTOs accumulated and higher salary bands are targeted by each layoff decision maker compared to younger employees. If you get regular workload reduced significantly and get one or more difficult tasks than usual with tight deadline, then it's an effort that your leader makes to prove to HR that you should be the layoff target in his or her team. Otherwise, you cannot kick off a top performer from your team without a valid reason.
Bumping this from @4zwd+1nWn9otT for info.