It took less than 5 minutes to switch to a ProtonMail account, less than 2 hours to download and/or offload every byte of data from my Google account, and less than 3 days to change every single account or service I've ever signed up for to the new address.

As of today, the only single one I have that's still tied to it is YouTube. It's the only thing I'd lose access to if I deleted my Google acount entirely.

They really, really want you to believe that it's a hassle to switch to a different email system. But it's not. Most websites and/or services allow you to change the email address associated with it.

You can and should switch to a free, encrypted Proton email account. You also get all of the below perks. For free. There is no trick. It is paid for by the people with paying plans. I am one of them. The (completely functional) free tier is there to entice you into getting a paid account with even more perks. (It worked on me.) But there's no penalty or pressure for staying with the free account.

Also get your stuff off the google drive and put it on Proton's drive. It is encrypted. Only you with your password can access it. Not even Proton can see what you put in there.