I have multiple accounts to access and each access is a different identity. Can I use an incognito browser, or is there any software that supports it?

I have multiple accounts to access and each access is a different identity. Can I use hidden browser, or is there any software that supports it?

set up different proxy & anti detect browser (or just a new profile in that browser) for each account

You can consider antidetect browsers like hidemyacc or multilogin. It enhance your online privacy by preventing websites from tracking your browsing behavior, cookies, and other digital footprints. This helps safeguard your personal information from being collected and used without your consent.