I would say it really depends on the person and the alter. It can be easy as flipping a switch for some while it takes longer for others and without warning. For me typically it just feels like waking out of a dream or slipping into one. I can occasionally switch by choice if both me and the other alter are both in agreement to do it, but as far as forcefully holding back a switch I can't do that. I also can't force my way back to fronting, although I can be very persistent in wanting the front back. There are some cases however where Ill fully throw another alter into fronting because I can't handle the stress of a situation. When describing things that happen within the head it can be rather difficult to explain, but in general it'll feel like a dream and I can only somewhat manually switch Giving up control is easy, taking it back is more difficult if there's no agreement. But everyone is different.

switching is a bit weird for us because it might be p-did or osdd-1a. but it feels kind of like a mask is on? where suddenly we have access to different memories, act differently, think differently, but are still "consciously aware" of ourselves. kinda just like being extremely co conscious but yeah idk its different for everyone

With me it feels like I'm disconnecting and reconnecting like a android that bootloops a couple times before starting up like normal for me I cross my eyes and hitch my breath you can see physical signs after I switched like for instance my voice will be deeper or lighter I'll have different triggers I'll have a different speaking style and most of all a different personality and perspective