Click the bars on the top right or your profile picture, go down to history. The first video that appears should be the last lesson you where on. You can also make bookmarks for your current lesson in your browser.
The community isn't dead either. I'm sure many people have similar questions and somedays I play out of tune. I think is safe to say a lot of us learners don't know everything. Hopefully we can be a part of keeping the forums upbeat and lively together. ✌
The fact you have search history to find where you left off tells you the layout needs an overhaul. Most pathways in other courses you just click on pathway and you are at your last lesson.Even if you have explored other lessons.And I've seen instructors also on the forums. Not so much here.