Well, didn't take long for 'perplexity' to become DAMNED tiresome too...
Installed the 'chrome default search engine' plugin last night, which seemed to work fairly well... Started up my browser this morning, and not only did it make itself the default search and 'new tab page', (which I wanted), but DISABLED without notice the 'continue where I left off' option, so this morning rather than the 90 tabs I was working on yesterday I got the perplexity page and nothing else.
So yea, making me waste forty minutes of my morning tracking down what I was working on and rebuilding my 'tab groups' has got me a bit pissed at 'perplexity'...