Send in the clones... (best cloning software for laptop SSD?)

I have a new SSD NVMe M2 drive, 1TB, which will replace my miniscule 256GB system drive in my laptop (HP Envy x360).

This came from Crucial, and they sent a link to Acronis cloning software, with a very (overly) basic video about how to use it. It looks like it will do the job, but questions remain, such as:

1) Can I enlarge the Windows (10) partition to a larger one, and still have Windows boot?
2) How are the other 2 partitions handled (to wit, a small GPT partition, at start, and a very small "backup" partition, after the main)?
3) My partition is described as "bitlocker encrypted" - will Acronis replicate this? If not, can I encrypt after the fact?
4) Is there any reason to want a second partition? If there's an advantage, I'd still probably want to enlarge the OS partition to ~500GB, to allow room for updates and software.

This leaves me wondering, should I still go with Acronis, or are there better options? Will other options work, or are versions made which are keyed to certain brands? And if I go with Acronis, how best to deal with the questions above?

Or... is there any reason to run a "backup," and essentially resinstall on the new drive?

 

You can adjust the Partition using Disc Management after you Clone the new SSD storage when the laptop is running on the new NVMe SSD.

 

Hmm, maybe I'm too used to old-school partitioning, but I don't recall ever being able to make adjustments to a partition with data on it, without destroying that data, after the fact?