Screen flickering in manjaro xfce

I am having screen flickering issue whenever I open any browser, I have already tried various solutions but it;s not working. please help.
this is my inxi output :grinning:

CPU: Dual Core AMD C-60 APU with Radeon HD Graphics (-MCP-) speed/min/max: 800/800/1000 MHz Kernel: 5.10.36-2-MANJARO x86_64 
Up: 21m Mem: 597.7/1603.0 MiB (37.3%) Storage: 465.76 GiB (4.1% used) Procs: 164 Shell: Bash inxi: 3.3.04

[ishan@1337-box ~]$ inxi --no-host -F

System:    Kernel: 5.10.36-2-MANJARO x86_64 bits: 64 Desktop: Xfce 4.16.0 Distro: Manjaro Linux 
Machine:   Type: Laptop System: ASUSTeK product: K53U v: 1.0 serial: <superuser required> 
           Mobo: ASUSTeK model: K53U v: 1.0 serial: <superuser required> UEFI: American Megatrends v: 223 date: 04/10/2012 
Battery:   ID-1: BAT1 charge: 21.9 Wh (47.0%) condition: 46.6/56.2 Wh (83.0%) volts: 10.7 min: 10.8 
CPU:       Info: Dual Core model: AMD C-60 APU with Radeon HD Graphics bits: 64 type: MCP cache: L2: 512 KiB 
           Speed: 799 MHz min/max: 800/1000 MHz Core speeds (MHz): 1: 799 2: 801 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Wrestler [Radeon HD 6290] driver: radeon v: kernel 
           Device-2: Chicony Chicony CNFA078 type: USB driver: uvcvideo 
           Display: x11 server: X.Org 1.20.11 driver: loaded: radeon resolution: 1366x768~60Hz 
           OpenGL: renderer: AMD PALM (DRM 2.50.0 / 5.10.36-2-MANJARO LLVM 11.1.0) v: 3.3 Mesa 21.0.3 
Audio:     Device-1: Advanced Micro Devices [AMD/ATI] Wrestler HDMI Audio driver: snd_hda_intel 
           Device-2: Advanced Micro Devices [AMD/ATI] SBx00 Azalia driver: snd_hda_intel 
           Sound Server-1: ALSA v: k5.10.36-2-MANJARO running: yes 
           Sound Server-2: PulseAudio v: 14.2 running: yes 
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 
           IF: enp3s0 state: down mac: 50:46:5d:d0:9d:75 
           Device-2: Qualcomm Atheros AR9485 Wireless Network Adapter driver: ath9k 
           IF: wlp4s0 state: up mac: 20:68:9d:ee:4c:4c 
Drives:    Local Storage: total: 465.76 GiB used: 19.11 GiB (4.1%) 
           ID-1: /dev/sda vendor: Hitachi model: HTS547550A9E384 size: 465.76 GiB 
Partition: ID-1: / size: 453.7 GiB used: 19.11 GiB (4.2%) fs: ext4 dev: /dev/sda2 
           ID-2: /boot/efi size: 299.4 MiB used: 296 KiB (0.1%) fs: vfat dev: /dev/sda1 
Swap:      ID-1: swap-1 type: partition size: 3.44 GiB used: 0 KiB (0.0%) dev: /dev/sda3 
Sensors:   System Temperatures: cpu: 6280.4 C mobo: N/A gpu: radeon temp: 57.0 C 
           Fan Speeds (RPM): N/A 
Info:      Processes: 163 Uptime: 23m Memory: 1.57 GiB used: 598.3 MiB (37.3%) Shell: Bash inxi: 3.3.04`

First thing to do is to update your system, e.g. by

sudo pacman-mirrors -f && sudo pacman -Syyu

Furthermore, maybe this post helps you:

I did exactly what you said sir, and now my system is not even booting.
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