>>103725887Depends but the vast majority of the time, yes. Especially because PNGtubers are usually just in-training to debut with a live2d model.
>>103726510You can get cheap or free live2d models but in the $10-$50 range you'll only see ones that have minor customization options and you can get a fully custom PNG model in that range. Customizable vtuber models tend to be around $90+
Vroid studio is free but is ugly when you don't know what you're doing.