Here is a comparison of all the various privacy ROMs (and “stock” Android), last updated on June 9 this year.
The person in that other thread who said “iodéOS is a carbon copy of LineageOS” is incorrect. iodéOS comes with a suite of FOSS apps (picked by the community) as optional installs, which is designed to make the transition easier for someone who is brand new to deGoogled Android (similar philosophy to CalyxOS). iodéOS also removes more of the Google services left in LineageOS, such as those associated with the Trust feature, and replaces them with more private alternatives. Additionally, iodéOS has developed a GSI version alongside its officially supported custom device ROMs, which means you can theoretically install and run iodéOS on any currently unsupported device that supports Project Treble.
iodéOS has official support for the Galaxy Tab S5e, which is on the list you linked. I own one but I don’t use it for art so I can’t comment any further.