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.
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.
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.
That one has been a well-known thing for a decade if not more; it's not just Google, half the Internet will start throwing captchas or denying access once you connect via a VPN (specifically "VPN" as in one of the services you pay to avoid location-based discrimination of media streaming platforms).