See https://help.octopusdeploy.com/discussions/problems/65644-selective-tentacle-upgrades-and-health-checks

In v4 it should be possible to select the targets to health check or upgrade via the filters. For example, I may only want to run it against a certain environment or tenant or against a certain role.

I feel there has been some regression from v4 here because you used to be able to control this by environment. Now it's all or a single machine and for large environments makes staged roll-outs of upgrades and updates extremely time consuming.