It comes down to, don’t use any voice activated devices. If it listens for commands your mic is always on. Don’t use voice activated cable TV remote controls or things like Alexia.
Always use VPN on phones
Limit hands-free phone calls in car.
Cell phones, disable things like Siri and every permission for any app to use your contacts and mic. Same thing with Windows OS. Only allow permissions with apps accessing contacts and mic.
Create a google account so you can disable them saving any search history and clear your history. They work off IP addresses, take control of that with account.
FB also provides same options. Limit what you type on it. By law they must provide these privacy options.
Sny listen device with noise cancellation uses a mic to do it. Plug it in only when in use.
Set your browser to delete cookies and history when closed. If it doesn’t have the option, apps like CCleaner will.
As someone else stated, lazy leads to data mining.
I don’t have issues because I do the stuff above. It helps. Most probably know this stufff.