GitLab is like, really good. No need to put your codebase in the "cloud."
I regularly operate with 1000+ tabs on less than 3 GB of ram. This works because I disable javascript and look at web sites instead of run applications. I have extensions to full text search and switch between them and each tab stores it's path on the web, unlike bookmarks. And I've been saving my sessions every month since Opera 5 introduced tabs (I use a FF fork now). That covers 2003-2021.
Tabs are great. Modern browsers are bad.
edit: perhaps their RCS option would be cheaper if you know exactly how much data you need to store in advance.
Now everyone is surprised to see when big tech says enough is enough.
Where else would these people draw the line if not here?