Modern World Campaign Idea

I had this idea for the world of a campaign. It is mostly modern day, except instead of major advancements in AI and other such tech, there is something unique to this world: Soul Tech. Basically is a way of preserving and storing people's souls so that future generations can "visit" them. Basically how this works is a Soul and people's Memories of that person are deeply connected. Almost like the movie Coco: when people don't have meaningful memories of you, your soul fades. Anyway, this is an expensive process, so the megacorp Afterlight pretty much has a monopoly on the technology that preserves the souls. However many people have differing beliefs on how this even works, as it is a very new, unexplored realm of science. The afterlife is still not something people understand.
While Afterlight does this the logical, scientific way, average people still have their own beliefs (which in this world definitely do work). So people who worship, or connect with their ancestors actually can, it just takes an immense amount of practice. And like Dia de Los Muertos and other related things have an actual effect.

Since this tech is new, there are also a lot of controversial beliefs about Afterlight and their actions. Even people within religions can have drastically different opinions, because nobody knows how the afterlife really works still. Is Afterlight stopping reincarnation? Is it good because we can connect more easily with ancestors? So many questions and grey areas will arise.
By the way, the "afterlife" is called the soulflow. When someone dies, their soul goes there. Again many different opinions on how this works. may be like the ethereal plane, mirroring the material. Might be actually flowing like a river, and afterlight is damming it. Might be a circle of reincarnation, who knows.
I want this campaign to explore these ideas, and the characters' goal will be to do just that: learn and connect with the soulflow. They will start out as normal humans, and they learn some stuff from a wise soul person. after this they will get their class abilities (homebrew or tweaked to fit this world) although that won't be necesarily the focus at first, because there is not much to do with them.
I have more details if you want, but just wondering if you have any cool ideas for adventures/stories that could take place here! Any other ideas in terms of worldbuilding and campaign creation are welcome, but I don't need too much as far as rules and systems. Also any adventures where the characters can show off their cool, unusual abilites would be epic!