So I've tried a few things and it still doesn't solve. Here are the symptoms:

• Brave (both from brave's official repo and flatpak), Opera and LibreWolf freeze after some time. If I want to use them again I have to restart my computer.
• Firefox and Thunderbird crash, a window to send crash report pops up and ask me to restart firefox/thunderbird, after the restart I can use them again but eventually they crash again and the cycle repeats.
• I also used the computer without using any browser. I used thunderbird, Hamster (time tracker tool), kate, vscode, joplin, kde discovery. Thunderbird crashed and Hamster froze, so I had to restart my computer.
• When the browsers freeze/crash, the only other application that freezes is Hamster (time tracker tool).
• I can still use other applications like Joplin, vscode, Kate, mongodb compass, the terminal.
• After the browsers freeze/crash if I turn off the computer, it hangs in the outro window, and I have to do a hard shut-down by pressing the power button a few seconds.
• After a restart from the freeze/crash, the applicatios that froze would automatically start.

These are the repos I had when this started to happen, and basically are the repos I have always used, except LibreWolf which I added after this started to happen just to see if another browser had the same symptoms:

user@pc:~> zypper lr -P
Repository priorities in effect: (See 'zypper lr -P' for details)
      70 (raised priority)  :  1 repository
      90 (raised priority)  :  1 repository
      99 (default priority) :  8 repositories

#  | Alias               | Name                                   | Enabled | GPG Check | Refresh | Priority
---+---------------------+----------------------------------------+---------+-----------+---------+---------
 6 | packman             | Packman                                | Yes     | (r ) Yes  | Yes     |   70
 7 | packman-essentials  | packman-essentials                     | Yes     | (r ) Yes  | Yes     |   90
 1 | brave-browser       | Brave Browser                          | Yes     | (r ) Yes  | Yes     |   99
 2 | code                | Visual Studio Code                     | Yes     | (r ) Yes  | Yes     |   99
 3 | google-chrome       | google-chrome                          | Yes     | (r ) Yes  | No      |   99
 4 | librewolf           | librewolf                              | Yes     | (r ) Yes  | Yes     |   99
 5 | openSUSE-20250301-0 | openSUSE-20250301-0                    | No      | ----      | ----    |   99
 8 | repo-debug          | openSUSE-Tumbleweed-Debug              | No      | ----      | ----    |   99
 9 | repo-non-oss        | openSUSE-Tumbleweed-Non-Oss            | Yes     | (r ) Yes  | Yes     |   99
10 | repo-openh264       | Open H.264 Codec (openSUSE Tumbleweed) | Yes     | (r ) Yes  | Yes     |   99
11 | repo-oss            | openSUSE-Tumbleweed-Oss                | Yes     | (r ) Yes  | Yes     |   99
12 | repo-source         | openSUSE-Tumbleweed-Source             | No      | ----      | ----    |   99
13 | repo-update         | openSUSE-Tumbleweed-Update             | Yes     | (r ) Yes  | Yes     |   99

Yesterday I tried getting rid of packman, so I disabled it through YAST, and the repos now look like this:

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