COVID-19 has definitely had a major impact on seniors; you need only consider the isolation they're forced into.
I've been in this occupation for about 20 years. However, in the past two years, for the first time, I've had to urge seniors to stay at home. We usually have to encourage them to get out, to engage in outdoor activities, to talk to people and to build a social network. Two years later, the effort that some seniors have made in this area will have to be started over from scratch.
One of the consequences of isolation is that people have less and less contact with others. Consequently, any mental health or other problems they may have will worsen. People then become more fragile.
Problems have definitely increased, even among the clientele I've observed to date.