Garou's new form called Cosmic Fear Mode in the latest chapter. How strong do you think it'll be?

No, garou is not copying saitama's techniques. His power is to copy the energy from anything (like a nuclear bomb, blast's gravity knuckles or a serious punch). He's planning to copy saitama's

Who would win, Awakened Garou (Webcomic) and Cosmic Fear Mode Garou or Lord Boros? - Quora

Did Saitama finally find the fight he'd always wished for in God Form Garou? - Quora

One Punch Man: 5 anime characters who can defeat Garou (and 5 who don't stand a chance)

Garou/Synopsis, One-Punch Man Wiki

Cosmic Fear Garou vs Demon King Tanjiro. Who will win in a fight? - Quora

Naruto vs Cosmic Garou : r/PowerScaling

Cosmic Fear Garou vs Lord Boros - Battles - Comic Vine

For everyone saying Saitama is still stronger than Garou, Garou clearly held back his ultimate form : r/OnePunchMan

One-Punch Man Cliffhanger Unleashes The New God Form of Garou

Who is stronger and who would win, Baryon Mode Naruto (Naruto: Next Generations) or manga Garou (One Punch Man)? - Quora

Garou, One-Punch Man Wiki

Cosmic Fear Mode Garou (One Punch Man) vs Madara Uchiha (Naruto)

Garou, Cada Debates Wiki