There are different figures for this

[shishir.seoexpert1]

Google Ads campaigns are promising under certain conditions
I would like to start by mentioning an important fact: Google is the absolute market leader . With a market share of over 87%, Google was by far the leader in May 2020 , measured in page views in the global desktop search engine market. Bing achieved a market share of just under 6%, Yahoo had just over 3%.

Screenshot 2020-06-08 at 10.18.09_seo-opt

When it comes to searches via mobile devices, Google's global gambling data austria market share is even over 95%. The Chinese provider Baidu follows in second place with 2.34 percent.

That in itself speaks in favor of AdWords, because the basic market is there. The next question is whether the ads are actually clicked on, or whether searchers prefer the organic search results.

they range from 15% to 50%. Since good and relevant ads appear high up on the results pages for search queries, even a lower percentage would be significant. So from this point of view, AdWords ads are generally promising.

Two questions remain:
How many conversions (i.e. customers) do you get from your AdWords ads? ... and
Are AdWords campaigns worthwhile regardless of the industry and products?
Question 1 cannot be answered in general terms - you guessed it. The conversion rate depends in particular on the intensity of competition for the specific keywords and, of course, on the quality of your AdWords campaign.