Gradual paci removal? Intrigued hehe based on my paci post
If answers related to sleep were touchy then that's probably the case. Touchy babies prefer less; less is more with sleep. That can explain not wanting to be held but could be age. Around 3 months they discover their limbs! So sleep changes a bit as far as wind downs etc! Mine is the same... Suddenly hated the swaddle and being held. Still needs his swaddle so we are holding onto it but I've also began to settle from the crib for a few weeks now!
20-25 min naps can mean OS, 30-35 OT, 45-50 or around there UT. At this age short naps are so developmental. Think of it like this: 0-3 months they work on their night sleep (Extending night hours)... 3-6 they work on their day sleep (extending naps) ...after that it's mainly a matter of other things such as teething, nap transitions, developmental milestones... Etc! Be guaranteed the first year is a lot of up and down but one day your going to find your self capping naps and wonder how you arrived to that!
As far as helping with sleep cycles, you can attempt W2S, or resettling as often as you can. Honestly, the way I do it, is try my best to have the first two naps of the day at home since they are the most restorative. I do what I can (IF I can) to resettle and extend naps. For now that's all I can do! I do not spend more than 15-20 mins trying to resettle or nap. If I do, I just step out bc as you say, it's wasting the day away and it surely is. Especially with a toddler around. I'm the same. I can't keep him alone that long and so often... They get restless too and need to be out and about! I've realized with multiple kids it's another ball game. I had all the time in the world the first time to do this- now I just have to go with the flow and with such little A time too, and such new stuff to them, it's hard to prevent OT/OS yk?
if you decide to work on some ST, you have to commit and stay consistent
Hugs and good luck! Keep us posted