The new icons are awful, but there’s a way to change them back with a free Chrome extension. The extension has some bugs, but you might be willing to deal with them to fix the icon design.
Browsers are like Macs versus PCs, dogs versus cats, and ketchup versus mustard - everybody has a preference. For the majority of the population, the most popular choice right now is Google Chrome.
Chrome allows you to save tab groups, which appear as icons in the bookmarks bar. You can restore them later with just a click.