I use Google as a secondary search and as of roughly last week it gives me a captcha every time I try to do a search. That had never been the case before.
For a few years now Google has given me a captcha whenever my VPN is on (Private Internet Access)
I am seeing it a lot more lately with uBlock Origin. I've used DDG for search for a while now, but the last few times I've tried Google I got a captcha within a couple of queries if not immediately.
I browse over Tor for most things and most sites give me a captcha or just simply fail to load these days. I just close the window and move on to something else.