Like Bets, living overseas we may have a different perspective. For many Europeans, they see COVID as here to stay for the next few years. They do not see "an end" or are even thinking they can end Covid soon. Thus, they are implementing systems - like the centralized, government-supported EU Digital COVID Certificate - to help work through the challenges of COVID restrictions. The European vaccination numbers - even in a country like the NL, where we started 2-3 months behind EVERYONE - are now mostly higher in percentage than the USA (Dutch government reports 73% of persons over 12 are vaccinated - their goal is 85%).
Life goes on... and you adapt. Over the next three months - primarily for business - I am traveling to Rome, Florence, Seville, Paris, Brittany, London, Northern Italy (including Venice), and then to Atlanta for the Christmas holidays. Frankly, the most concerning trip is the one to Atlanta. I know the rules, parameters, and COVID environments much better in Europe than I do in the USA. And the southern USA seems to have some COVID challenges. As mentioned, although there is a small group of anti-vax folks in Europe, the vaccine and the required systems (mask-wearing) are not as politicized as it appears in the USA. (During the lockdowns, yes, we had many protests!).
That all said, I - like many locals - are very aware of COVID and it does shape our daily lives. Although masks are not required indoors in the NL now, I still wear one when I enter many locations - especially the crowded grocery stores. I frequent restaurants that I know will adhere to the social distancing requirements. I carry hand sanitizer and use it frequently. So you adapt.
Perhaps the biggest concern - having been there for many months - is that Europeans DO NOT want to have to do another lockdown. THOSE WERE PAINFUL DAYS - emotionally and economically! Like many Dutch locals, we cringed under the narrow entry restrictions that were in place for 15+ months here in the NL. We could literally not go anywhere - because countries prevented NL residents to visit (our numbers were SO bad) or you couldn't get back in without multiple tests required. Since June 24 - with the relaxing of standards to visitors - we've swayed the other way and many want the government to reinstate some rules as the NL is fairly wide-open now.
The vaccinations have made a huge impact here. And the government, like many other countries, is addressing the 3rd jab for residents - which we're happy to hear about. (an announcement due by end of September). There's no doubt the vaccinations have had a tremendous impact on hospitalizations and deaths. I looked the other day and the NL had 2 deaths on that date. As this country is 20 times smaller in population than the USA (17 million vs. 330 million)... that would be the equivalent of 40 deaths in the US. So I went and looked and saw that - as of Sept. 1 - the US is averaging 1400+ deaths a day. So yes, given that stat, I do feel much safer in the NL.
But as mentioned by others, you have to feel comfortable traveling and being in a foreign, unknown environment. I'd agree that COVID is everywhere and you can catch it walking down your street... just as you can at a hotel in Europe. But there is a higher vaccination rate here now than in the USA, COVID is perhaps less politicized, and you will not be admonished for wearing a mask if you so choose. Traveling these days is a personal choice - just like going into your local stores, a movie, a restaurant, or a sports event. Gather information, viewpoints, and opinions - as you're doing - and make the best-educated, balanced decision that fulfills you. You have to do what works for you. Good Luck!