Block Temu from Google Search Results

• Add -site:temu.com to your google searches. That will show search results except for those from Temu.com since you added the -site: modifier.
• Another option would be to check for Safari Extensions in the App Store. I don't want to recommend any one in particular because I have not used them, but was able to find a few with a search.

DuckDuckGo supports excluding up to five websites from search results:

https://duckduckgo.com/duckduckgo-help-pages/results/how-to-block-sites-from-appearing-in-search-results