TWoS is likely the best mod for SH5 done to this day, but it does not reflect what the game was when it came out.
It starts with the tutorial that has been taken out, the progress bar system taken out so you don't have to sink x tonnage to advance, the in-game map looks different, there are menu dialogues for the crew etc. etc.
So if you watch old videos just remember there was a time without these improvements...Just a basic hull...
Currently I'm putting together some minimal mods just to see what this basic hull was about...Some gaming archeology if you want...Nothing to write home because CTDs will end my journey fast as soon as I add interesting stuff...A reason why a good modlist for SH5 should contain about 30-40 entries (to respond to your title question), a paradise for mod addictors, a nightmare for gaming archeologists
