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Hello, I would like the ability to "pause" programs in order to save on resources. This could be done manually by telling a process to pause or by pausing programs/processes automatically when you switch desktops. This would help keep resources open for intensive tasks like video gaming or design work but without having to close everything out and then reopen it all again (Ex: browsers where I constantly have 10-30 tabs open).

Another feature I would like is the ability to assign programs to certain resources, like specific CPU cores like you can do with "Process Lasso". This would potentially help you be able to give demanding programs more priority and higher boosting cores while background tasks can be put on less powerful cores.

I would suggest that such feature should be implemented in the "activities" concept KDE offers.

I would actually _expect_ processes to get "frozen" if an activity is stopped. And to get continued if the activity is launched again. That would offer a simple and consistent way to handle things if you want to switch between what you would understand in real life as an "activity" (which is what you describe).

I've read an article about Linux's checkpoint/respawn mechanism. Maybe using these? Of course, not each process could be written to file to respawning it in future. There should be check, about which files it open, if they connect via network, etc.