Hello everyone. I'm planning to drive from the uk to

I don't think you necessarily need to non-stop  through France on the way to italy, only on the way back to the UK to avoid quarantine.

Don't think there are any restrictions on entry into italy from France or Switzerland 

Ceck this page , day by day , for the Entrance in Italy 

https://www.esteri.it/mae/en/ministero/normativaonline/decreto-iorestoacasa-domande-frequenti/focus-cittadini-italiani-in-rientro-dall-estero-e-cittadini-stranieri-in-italia.html

at the top right of the page, the key to change language !

Thanks for the advice we'll keep an eye on the situation.