Will this affect my users that have up-to-date devices?

It should not, because the vast majority of websites support TLS 1.2. According to Qualys’s SSL Labs 95.2% of websites support TLS 1.2. A small number of websites may not work but the overall impact to your users will be minimal.

Please find further information in this document:
End Of Life for TLS 1.0 and 1.1 Support

Do you need further help?

https://usercentrics.atlassian.net/wiki/spaces/SKB/pages/234913848