Unfortunately, not through any official means. The S20 line-up has reached its EOL. There are tons of projects that come out for dead devices like this. Samsung killed off new updates for my Galaxy Tab S7, so I unlocked its bootloader and slapped a backport of One UI 7 on it. I would strongly advise against doing this as it will void any warranty, or it will trip knox. OR BOTH. You should only do this if you know what you're doing, and it's on a personal fully paid-off device. In general though, its probably best to avoid this so you don't have to deal with a bricked phone or tablet.
And again, only mess with customized roms if you are an advanced user. It'll be way easier if you just buy a new phone. You can also trade-in your old device to get a discount on your new one.
