My manager is experiencing the same due to a bout of long covid.
The way it appears he is dealing with it, from my perspective, is he has delegated the things which require immediate memory/cognition to us and is leveraging his expertise to direct us at a higher level and trusting us to execute and feed back pertinent information when we next check in.
While I feel for his worsening condition he has managed to do negotiate this in a way that:
1. Leverages his knowledge, expertise and network to a greater degree
2. Given us autonomy that feels empowering, while not increasing our workload to pick up his perceived slack.
The way it appears he is dealing with it, from my perspective, is he has delegated the things which require immediate memory/cognition to us and is leveraging his expertise to direct us at a higher level and trusting us to execute and feed back pertinent information when we next check in.
While I feel for his worsening condition he has managed to do negotiate this in a way that:
1. Leverages his knowledge, expertise and network to a greater degree
2. Given us autonomy that feels empowering, while not increasing our workload to pick up his perceived slack.