Hi,
1. Desktop
– You set 3 columns for logo, you can try to improve logo size on desktop to 300px https://prnt.sc/sfrhu1
2. Mobile
+ Header: You can set size for the logo on mobile https://prnt.sc/sfrgjo
+ Footer: You’re using this block https://prnt.sc/sfrip4 Go here and select mobile to change logo https://prnt.sc/sfrj2p https://prnt.sc/sfriwd
Regards,
Hung PD