I've switched to Edge on Mac and it's really nice. Safari is still good but I prefer Edge. Bigger fonts for example, on the favourites bar - that sort of thing.
I do enjoy Microsoft Edge. I hate the fact that Microsoft moved from EdgeHTML as their rendering engine to Blink/Chromium. Now all major browsers are using Blink/Chromium as their base besides Apple (Safari/Webkit) and Mozilla (Firefox/Gecko). We need diversity. If everyone is using Blink/Chromium it puts way too much power in Google's hands when it comes to manipulating how the web is going to develop moving forward.
But Microsoft did such a piss poor job with EdgeSpartan (old Edge) so the move to EdgeChromium (new Edge) has made the browser far more competitive. And Microsoft are making a ton of good decisions with EdgeChromium. They built-in vertical tabs is hands-down the best way of managing tabs if you ask me.
What I hate with Microsoft Edge is the fact that it currently is the browser farming the most telemetry data from users. It's really bad for privacy. It's the only browser from the big players that is actively tying your browser to a hardware identifier and whatnot. It's rather bad.
And Microsoft is just terrible at sync. Which is quite ironic considering they are owning the entire backend and whatnot as it's using Microsoft Azure and Microsoft 365. Still I have Microsoft Edge running on two Windows 11 BETA installations, two Windows 10 20H1 installations, one Windows Server 2019 installation, one Windows Server 2022 installation and one macOS 12 BETA3 installation and things like browsing history and typing data is a complete mess. When I configure Microsoft Edge on a new system it will often not sync my extensions etc.
Safari on the other hand is also great in many ways. It's by far the most fluid and power-efficient browser on macOS. On iOS there really is no contest as you don't get decent ad-blockers and whatnot with third-party browsers and all browsers have to use WebKit on iOS regardless so using other browsers doesn't really make any sense other than syncing capabilities that comes at a loss of being capable of using a decent ad-blocker.
Apple is doing so many great things when it comes to privacy. iCloud Private Relay on macOS 12 makes Safari so much better compared to any other browser for privacy for this reason alone. But Safari is struggelig with rendering some websites at times (this again most likely a downside of everyone else moving to Blink/Chromium allow for web developers to not follow common web standards. As long as it works correctly in Blink/Chromium they don't care as web standards making it also work in Safari (Webkit) or Firefox (Gecko) isn't important as the userbase is quite small. This is bad..
Perhaps my biggest issues with Safari on macOS is the lack of extensions. We have a few but the situation is rather bad. I have some extensions that is simply integrated to my browsing habits. Not having these is a huge limitations. But Apple's move from their own standard for extensions over to using the open WebExtensions standard with iOS/iPadOS 15 and macOS 12 will most likely make the market for Safari extensions far better. This should also make it so that Safari extensions on iOS/iPadOS is no longer limited to only ad-blockers.