I can offer some insight here as I've flip flopped between Apple and Google over the years, I have a thread here talking a lot about it -
https://forums.macrumors.com/threads/flip-flopping-between-macos-and-windows.2212216/
In short, the Google ecosystem is really good, better in some ways than what Apple offer. Let me break it down for you.
Whatever PC you decide to run, you'll have full access to Google services as they were designed from the ground up to be web apps. Compared to Apple who seem to have built their iCloud app versions as an afterthought.
iMessage is probably one of the biggest sticking points for many, more so in the US. In Europe (and UK where I live) WhatsApp completely dominates the messaging space. You can install and run WhatsApp on the web and desktop which is very nice to have. Again, this may not be viable in the US if you live predominately within an iMessage world.
My home is Google and it works so well, I genuinely find it an essential tool. Nest Hello at the front door rings my many Nest Mini, Nest Home Hub and Sonos speakers announcing someone at the front door. I have a Mini in my log cabin home gym which allows me to stay connected to the home, we use the broadcast feature daily as an intercom. "Hey Google, Broadcast message xyz" and it records my spoken message and plays back in every room in my house. My wife runs a home salon and uses the Nest Home Hub with the screen to speak to clients at the front door, especially important during covid. It all works so seamlessly.
The ecosystem of devices you can easily add to Google Home is vast, I've bought some cheap Wifi plugs from Amazon and now I can ask "Hey Google, turn on the Log Cabin Heater" for example. Google Assistants voice match is exceptionally good allowing me and my wife to ask any of the devices to add something to our calendar, reminders, play our music, etc. All linked to our own Google accounts based on the voice matched.
Tablets are the one area I feel you'll have to make a compromise since Google doesn't offer anything good there. My wife who is fully in Google camp uses a Tab S5e and just installed all the Google apps, no bother. She also uses a Fossil Gen 5 running WearOS and loves it, full integration into Google services. It isn't as good as an Apple watch for sure, but there are many wearable options.
The Pixel phones offer a fantastic experience and tight integration to the services. Couple of things to note, installing an ab blocker for Chrome isn't that easy, of course Google do want to serve you ads. It depends on your browsing habits if this would bother you, I mainly stick to the same few websites which don't run ads. Notifications on Android are a dream, it's one of the biggest things I dislike about iOS. Android Auto I personally find better than CarPlay, certainly in my 2017 Audi A4, the car controls navigate the menus so much better. This would vary car to car. The AA interface feels more useful to me when I'm traveling and better laid out.
Outside of Apple you have access to some seriously powerful hardware choices. Like PC Gaming? A custom built PC is going to offer a ton of performance and flexibility. All your Google services are there in Chrome (a really good browser). Laptops I still find what Apple offer to be better but it's close, there are some lovely machines available from companies like Lenovo, Dell and Razer.
So after much praise for Google, where have I put my money? I'm actually in limbo right now. On one hand the minimalist side of me loves Apples ecosystem, aesthetic, consistent high quality hardware, support and simplicity. The non-Apple route allows me to have a super powerful PC, access to some really nice Pixel features and better integration with my home. You don't have an desktop OS from Google (unless you count chromeOS) so you'll be on Windows, although there is nothing stopping you from using Apple computers and just not using their services. Windows feel like it's a bit stagnate over the years where as macOS has been slowly improving and being visual refreshed a few times.
