I use it.

And, you can add sponsorblock using beta, nightly or fennec f-droid and custom list of addon.

It’s not so easy. The fact they are harvesting so many data makes you vulnerable to law enforcement. If you use a service that doesn’t harvest data and where you can manage these data’s, you will have less tracks.

It’s like putting all your money at the same place. If the bank go bankrupt, you risk a lot.