I am both a hiker and a walker and this distinction played a huge role in how my first Camino (May-June 2023) evolved.
I have done a lot of solo and not-solo backpacking in various US locations. I love it. But I also walk a lot just around town. I love solitude. I knew that the Caminos are ancient pilgrimage paths, but also that some are more remote and mountainous than others. So (using lots of resources on this forum and with help from many here) I decided to walk from Logroño to León on the CF and then take the San Salvador to Oviedo and then the Primitivo to Santiago. Solitude and mountains, that was my plan! Early in my journey, I even met two other solo female pilgrims with the same plan. I was vindicated!
I soon discovered that in order to make my plan work and reach Santiago with time to continue to Muxia, I needed to keep the pace, but I found that I wasn't taking as much time as I really wanted to take pictures of flowers (I'm a retired botanist) or just sit in a bar and watch the pilgrims go by.
Then, in Sahagún, at Albergue de la Santa Cruz, I was attending a mass in English (my Spanish is good enough to catch the gist of a homily but not the details) and the priest said "The Camino is a pilgrimage, not a hike." His words hit me like a ton of bricks. I was trying to make my Camino into a hike. I was trying to convince myself that the lesser-trod paths with lots of elevation and solitude were preferable to the most popular, well-traveled, well-accommodated CF.
And even though I had previously told many people that the CF was not the way for me, I changed my plans, and continued on the CF.
By not taking the other route, I had plenty of time to slow my pace, take short days, and enjoy the long Spanish afternoons writing in my journal and watching the world go by. And I found so. much solitude. Except for the few days after Sarria. And even then, much of most days, I was able to see no one ahead and no one behind me. I walked into Santiago about ten a.m. and there were only three other pilgrims in sight!
So for me, there is a real distinction between hiking and walking. I allowed the Camino to show me how to let it all unfold and let go of my preconceived plans, and that has made all the difference.