I'll argue that using an Android-based tablet with the latest "digital well-being" features are superior to any e-reader. A few things on this worth noting:
- Making notes / taking highlights. The touchscreen navigation is far easier and fluid in making selections. Furthermore, you get an automatic sync to google drive feature
- Indexing: The speed for searching the entire text contents for keywords is much faster and again, a more seamless, non-janky experience
- Lookups: Built in dictionaries are much faster and easier to navigate / dismiss
- Readability: OLED with inverted text and red-light dimming makes for an excellent reading experience, lights on/off
- Distractions: You can limit these with bedtime and focus modes