And for ebooks, I’ve found Kobo to be an absolutely fantastic replacement. They also widely support Adobe Editions if that is your jam.
https://www.kobo.com/us/en/p/drm-free
In other cases it's not difficult to remove the DRM yourself.
Today, Audible dominates the audiobook market. In some verticals, their market-share is over 90 percent! And Audible will not let authors or publishers opt out of DRM. If you want to publish an audiobook with Audible, you must let them add their DRM to it. That means that every time one of your readers buys one of your books, they’re locking themselves further into Audible. If you sell a million bucks’ worth of audiobooks on Audible, that’s a million bucks your readers have to forfeit to follow you to a rival platform.
<https://doctorow.medium.com/why-none-of-my-books-are-availab...>