After an update your phone will be indexing and settling down. Please soft reboot by turning your phone Off and On and give it a few days to settle in.
Make sure your apps are updated in your Playstore and Galaxy Store.
Before a factory reset please try these generic troubleshooting tips.
1. Clear your phone's System Cache Files by turning your phone Off and then from a set series of button presses go into the phone's System Files and clear the cache. No information is lost this way. You may need to insert your headphones or hook upto a computer with your data cable to get to this menu on the phone.
2. Put the phone in Safe Mode which disables your downloaded app's but let's your stock app's keep working. If the issues stop then this highlights a downloaded app as the possible issue. Come out of Safe Mode and start deleting your most recent downloaded app's one at a time until it stops. https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/
I wish you all the best with this.
Current Phone > Samsung Z Fold³ 5G.