Yes, the Elipsa and Elipsa 2 are 32 G byte and USB Mass Storage (so easy to manage), the Scribe is USB MTP.
The Elipsa noteboooks and annotations work with a fake email sign-in or SideloadedMode=true (the dictionaries and notebook resources will still update by WiFi). Scribe is crippled without working registration to Amazon.
PDFs can be annotated on Elipsa and copied to & fro with USB, if not protected PDFs (Ghostscript on computer can make an unprotected copy). PDFs on Scribe need to go via Amazon server and Wifi back as fixed layout KFX, with then annotations emailed via Amazon, for full functionality.
The 32 G Scribe is £379.99 (unless you have a Prime subscription)
The 32 G Elipsa 2 is £349.99 without any subscription (Amazon or direct from Kobo, both free shipping).
Or Kobo has direct the original Elipsa (only major difference is colour of front light doesn't adjust) for £299 inc sleep cover and pen. (€349,99)
You can roll back FW on Elipsa, not Scribe.
However I nearly bought the Scribe because it's 300 dpi, after I'd bought the Elipsa and after I bought the Sage.
But I didn't because essentially anything other than
reading ebooks or PDFs has to go via Amazon's servers. The note taking is more proprietary and less functional than Sage or Elipsa.
Also I decided that the only advantage of Scribe was slightly higher DPI for PDFs and it still wouldn't be good enough for some due to limitations of eink.
So I got a TCL Nxtpaper 11 (10.9″) instead (€178, now €222) and it's got 128 G Flash and SD card slot for at least 1 T (I have 256G SD card).
All my annotated PDFs from Sage and Elipsa simply copied by file manager from USB and work with ANY PDF viewer.
All the basic and Advanced notebooks simply copied via USB and all imported perfectly to Nebo for Android (also work on iOS). The Android Nebo also imports PDF with conversion to real text layer on PDF (can be exported on many PDF programs as real text, or viewed in place, or free hand annotation as per Xodo free version on Android.
Pocketbook (free version) on Android on Nxtpaper 11 is far better for viewing PDFs, either one page old scanned mags & books, or two page proof for POD than Elipsa or reMarkable. Xodo simple to free form annotate PDF or see added OCR or Nebo text on its own.
Nebo on Android, unlike on Elipsa/Sage, does real time preview of handwriting and text and is hugely better. Also on Android the Google Gboard keyboard does real time handwriting to text with finger (or better is Pen) in ANY text input application. The 8000 mAH battery means adequate usage between fast charge (up to 20W?), they claim 10 hours of video streaming. Certainly for ebooks, PDF and audio as much as many ereaders.
See reviews
https://www.amazon.de/-/en/dp/B0C3MG289R
So Sage for mono pdf novels and PDF instructions that fit (more pixels than Elipsa) and a few smaller format PDF novels (crop per document), and the Nxtpaper 11 for everything else. Honor and Huawei may have similar tablets. I saw an HP all-in-one desktop nearly as good, and my 23.5″ LG 4K HDR monitor is nearly as good.
I now have every PDF, wordprocessor doc (LO viewer for Android) and ebook ever (dating to 1994) on the SD card. The only negatives of the Nxtpaper 11 are it's Android (13 actually) and USB-MTP, but the MTP works with Calibre without me disabling it for the Filesystem (Linux), simply by selecting Unmount on the icon. The transfer is faster than my USB SD card reader. Though Pocketbook app does OPDS via WiFi with the Calibre Content server.